diff --git a/builder/remotecontext/generate.go b/builder/remotecontext/generate.go
deleted file mode 100644
index 84c1b3b5ea..0000000000
--- a/builder/remotecontext/generate.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package remotecontext // import "github.com/docker/docker/builder/remotecontext"
-
-//go:generate protoc --gogoslick_out=. tarsum.proto
diff --git a/builder/remotecontext/tarsum.go b/builder/remotecontext/tarsum.go
deleted file mode 100644
index 19e409eee5..0000000000
--- a/builder/remotecontext/tarsum.go
+++ /dev/null
@@ -1,161 +0,0 @@
-package remotecontext // import "github.com/docker/docker/builder/remotecontext"
-
-import (
-	"os"
-	"path/filepath"
-	"sync"
-
-	iradix "github.com/hashicorp/go-immutable-radix"
-	"github.com/opencontainers/go-digest"
-	"github.com/pkg/errors"
-	"github.com/tonistiigi/fsutil"
-)
-
-type hashed interface {
-	Digest() digest.Digest
-}
-
-// CachableSource is a source that contains cache records for its contents.
-//
-// Deprecated: this type was used for the experimental "stream" support for the classic builder, which is no longer supported.
-type CachableSource struct {
-	mu   sync.Mutex
-	root string
-	tree *iradix.Tree
-	txn  *iradix.Txn
-}
-
-// NewCachableSource creates new CachableSource.
-//
-// Deprecated: this type was used for the experimental "stream" support for the classic builder, which is no longer supported.
-func NewCachableSource(root string) *CachableSource {
-	ts := &CachableSource{
-		tree: iradix.New(),
-		root: root,
-	}
-	return ts
-}
-
-// MarshalBinary marshals current cache information to a byte array
-func (cs *CachableSource) MarshalBinary() ([]byte, error) {
-	b := TarsumBackup{Hashes: make(map[string]string)}
-	root := cs.getRoot()
-	root.Walk(func(k []byte, v interface{}) bool {
-		b.Hashes[string(k)] = v.(*fileInfo).sum
-		return false
-	})
-	return b.Marshal()
-}
-
-// UnmarshalBinary decodes cache information for presented byte array
-func (cs *CachableSource) UnmarshalBinary(data []byte) error {
-	var b TarsumBackup
-	if err := b.Unmarshal(data); err != nil {
-		return err
-	}
-	txn := iradix.New().Txn()
-	for p, v := range b.Hashes {
-		txn.Insert([]byte(p), &fileInfo{sum: v})
-	}
-	cs.mu.Lock()
-	defer cs.mu.Unlock()
-	cs.tree = txn.Commit()
-	return nil
-}
-
-// Scan rescans the cache information from the file system
-func (cs *CachableSource) Scan() error {
-	lc, err := NewLazySource(cs.root)
-	if err != nil {
-		return err
-	}
-	txn := iradix.New().Txn()
-	err = filepath.WalkDir(cs.root, func(path string, _ os.DirEntry, err error) error {
-		if err != nil {
-			return errors.Wrapf(err, "failed to walk %s", path)
-		}
-		rel, err := Rel(cs.root, path)
-		if err != nil {
-			return err
-		}
-		h, err := lc.Hash(rel)
-		if err != nil {
-			return err
-		}
-		txn.Insert([]byte(rel), &fileInfo{sum: h})
-		return nil
-	})
-	if err != nil {
-		return err
-	}
-	cs.mu.Lock()
-	defer cs.mu.Unlock()
-	cs.tree = txn.Commit()
-	return nil
-}
-
-// HandleChange notifies the source about a modification operation
-func (cs *CachableSource) HandleChange(kind fsutil.ChangeKind, p string, fi os.FileInfo, err error) (retErr error) {
-	cs.mu.Lock()
-	if cs.txn == nil {
-		cs.txn = cs.tree.Txn()
-	}
-	if kind == fsutil.ChangeKindDelete {
-		cs.txn.Delete([]byte(p))
-		cs.mu.Unlock()
-		return
-	}
-
-	h, ok := fi.(hashed)
-	if !ok {
-		cs.mu.Unlock()
-		return errors.Errorf("invalid fileinfo: %s", p)
-	}
-
-	hfi := &fileInfo{
-		sum: h.Digest().Encoded(),
-	}
-	cs.txn.Insert([]byte(p), hfi)
-	cs.mu.Unlock()
-	return nil
-}
-
-func (cs *CachableSource) getRoot() *iradix.Node {
-	cs.mu.Lock()
-	if cs.txn != nil {
-		cs.tree = cs.txn.Commit()
-		cs.txn = nil
-	}
-	t := cs.tree
-	cs.mu.Unlock()
-	return t.Root()
-}
-
-// Close closes the source
-func (cs *CachableSource) Close() error {
-	return nil
-}
-
-// Hash returns a hash for a single file in the source
-func (cs *CachableSource) Hash(path string) (string, error) {
-	n := cs.getRoot()
-	// TODO: check this for symlinks
-	v, ok := n.Get([]byte(path))
-	if !ok {
-		return path, nil
-	}
-	return v.(*fileInfo).sum, nil
-}
-
-// Root returns a root directory for the source
-func (cs *CachableSource) Root() string {
-	return cs.root
-}
-
-type fileInfo struct {
-	sum string
-}
-
-func (fi *fileInfo) Hash() string {
-	return fi.sum
-}
diff --git a/builder/remotecontext/tarsum.pb.go b/builder/remotecontext/tarsum.pb.go
deleted file mode 100644
index d41e6677d4..0000000000
--- a/builder/remotecontext/tarsum.pb.go
+++ /dev/null
@@ -1,518 +0,0 @@
-// Code generated by protoc-gen-gogo. DO NOT EDIT.
-// source: tarsum.proto
-
-package remotecontext
-
-import (
-	fmt "fmt"
-	proto "github.com/gogo/protobuf/proto"
-	github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
-	io "io"
-	math "math"
-	math_bits "math/bits"
-	reflect "reflect"
-	strings "strings"
-)
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
-
-type TarsumBackup struct {
-	Hashes map[string]string `protobuf:"bytes,1,rep,name=Hashes,proto3" json:"Hashes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
-}
-
-func (m *TarsumBackup) Reset()      { *m = TarsumBackup{} }
-func (*TarsumBackup) ProtoMessage() {}
-func (*TarsumBackup) Descriptor() ([]byte, []int) {
-	return fileDescriptor_375be7466b474c4d, []int{0}
-}
-func (m *TarsumBackup) XXX_Unmarshal(b []byte) error {
-	return m.Unmarshal(b)
-}
-func (m *TarsumBackup) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	if deterministic {
-		return xxx_messageInfo_TarsumBackup.Marshal(b, m, deterministic)
-	} else {
-		b = b[:cap(b)]
-		n, err := m.MarshalToSizedBuffer(b)
-		if err != nil {
-			return nil, err
-		}
-		return b[:n], nil
-	}
-}
-func (m *TarsumBackup) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_TarsumBackup.Merge(m, src)
-}
-func (m *TarsumBackup) XXX_Size() int {
-	return m.Size()
-}
-func (m *TarsumBackup) XXX_DiscardUnknown() {
-	xxx_messageInfo_TarsumBackup.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_TarsumBackup proto.InternalMessageInfo
-
-func (m *TarsumBackup) GetHashes() map[string]string {
-	if m != nil {
-		return m.Hashes
-	}
-	return nil
-}
-
-func init() {
-	proto.RegisterType((*TarsumBackup)(nil), "remotecontext.TarsumBackup")
-	proto.RegisterMapType((map[string]string)(nil), "remotecontext.TarsumBackup.HashesEntry")
-}
-
-func init() { proto.RegisterFile("tarsum.proto", fileDescriptor_375be7466b474c4d) }
-
-var fileDescriptor_375be7466b474c4d = []byte{
-	// 205 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x29, 0x49, 0x2c, 0x2a,
-	0x2e, 0xcd, 0xd5, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x2d, 0x4a, 0xcd, 0xcd, 0x2f, 0x49,
-	0x4d, 0xce, 0xcf, 0x2b, 0x49, 0xad, 0x28, 0x51, 0xea, 0x62, 0xe4, 0xe2, 0x09, 0x01, 0xcb, 0x3b,
-	0x25, 0x26, 0x67, 0x97, 0x16, 0x08, 0xd9, 0x73, 0xb1, 0x79, 0x24, 0x16, 0x67, 0xa4, 0x16, 0x4b,
-	0x30, 0x2a, 0x30, 0x6b, 0x70, 0x1b, 0xa9, 0xeb, 0xa1, 0x68, 0xd0, 0x43, 0x56, 0xac, 0x07, 0x51,
-	0xe9, 0x9a, 0x57, 0x52, 0x54, 0x19, 0x04, 0xd5, 0x26, 0x65, 0xc9, 0xc5, 0x8d, 0x24, 0x2c, 0x24,
-	0xc0, 0xc5, 0x9c, 0x9d, 0x5a, 0x29, 0xc1, 0xa8, 0xc0, 0xa8, 0xc1, 0x19, 0x04, 0x62, 0x0a, 0x89,
-	0x70, 0xb1, 0x96, 0x25, 0xe6, 0x94, 0xa6, 0x4a, 0x30, 0x81, 0xc5, 0x20, 0x1c, 0x2b, 0x26, 0x0b,
-	0x46, 0x27, 0x93, 0x0b, 0x0f, 0xe5, 0x18, 0x6e, 0x3c, 0x94, 0x63, 0xf8, 0xf0, 0x50, 0x8e, 0xb1,
-	0xe1, 0x91, 0x1c, 0xe3, 0x8a, 0x47, 0x72, 0x8c, 0x27, 0x1e, 0xc9, 0x31, 0x5e, 0x78, 0x24, 0xc7,
-	0xf8, 0xe0, 0x91, 0x1c, 0xe3, 0x8b, 0x47, 0x72, 0x0c, 0x1f, 0x1e, 0xc9, 0x31, 0x4e, 0x78, 0x2c,
-	0xc7, 0x70, 0xe1, 0xb1, 0x1c, 0xc3, 0x8d, 0xc7, 0x72, 0x0c, 0x49, 0x6c, 0x60, 0x8f, 0x19, 0x03,
-	0x02, 0x00, 0x00, 0xff, 0xff, 0x9e, 0xc6, 0xaf, 0xd0, 0xe8, 0x00, 0x00, 0x00,
-}
-
-func (this *TarsumBackup) Equal(that interface{}) bool {
-	if that == nil {
-		return this == nil
-	}
-
-	that1, ok := that.(*TarsumBackup)
-	if !ok {
-		that2, ok := that.(TarsumBackup)
-		if ok {
-			that1 = &that2
-		} else {
-			return false
-		}
-	}
-	if that1 == nil {
-		return this == nil
-	} else if this == nil {
-		return false
-	}
-	if len(this.Hashes) != len(that1.Hashes) {
-		return false
-	}
-	for i := range this.Hashes {
-		if this.Hashes[i] != that1.Hashes[i] {
-			return false
-		}
-	}
-	return true
-}
-func (this *TarsumBackup) GoString() string {
-	if this == nil {
-		return "nil"
-	}
-	s := make([]string, 0, 5)
-	s = append(s, "&remotecontext.TarsumBackup{")
-	keysForHashes := make([]string, 0, len(this.Hashes))
-	for k, _ := range this.Hashes {
-		keysForHashes = append(keysForHashes, k)
-	}
-	github_com_gogo_protobuf_sortkeys.Strings(keysForHashes)
-	mapStringForHashes := "map[string]string{"
-	for _, k := range keysForHashes {
-		mapStringForHashes += fmt.Sprintf("%#v: %#v,", k, this.Hashes[k])
-	}
-	mapStringForHashes += "}"
-	if this.Hashes != nil {
-		s = append(s, "Hashes: "+mapStringForHashes+",\n")
-	}
-	s = append(s, "}")
-	return strings.Join(s, "")
-}
-func valueToGoStringTarsum(v interface{}, typ string) string {
-	rv := reflect.ValueOf(v)
-	if rv.IsNil() {
-		return "nil"
-	}
-	pv := reflect.Indirect(rv).Interface()
-	return fmt.Sprintf("func(v %v) *%v { return &v } ( %#v )", typ, typ, pv)
-}
-func (m *TarsumBackup) Marshal() (dAtA []byte, err error) {
-	size := m.Size()
-	dAtA = make([]byte, size)
-	n, err := m.MarshalToSizedBuffer(dAtA[:size])
-	if err != nil {
-		return nil, err
-	}
-	return dAtA[:n], nil
-}
-
-func (m *TarsumBackup) MarshalTo(dAtA []byte) (int, error) {
-	size := m.Size()
-	return m.MarshalToSizedBuffer(dAtA[:size])
-}
-
-func (m *TarsumBackup) MarshalToSizedBuffer(dAtA []byte) (int, error) {
-	i := len(dAtA)
-	_ = i
-	var l int
-	_ = l
-	if len(m.Hashes) > 0 {
-		for k := range m.Hashes {
-			v := m.Hashes[k]
-			baseI := i
-			i -= len(v)
-			copy(dAtA[i:], v)
-			i = encodeVarintTarsum(dAtA, i, uint64(len(v)))
-			i--
-			dAtA[i] = 0x12
-			i -= len(k)
-			copy(dAtA[i:], k)
-			i = encodeVarintTarsum(dAtA, i, uint64(len(k)))
-			i--
-			dAtA[i] = 0xa
-			i = encodeVarintTarsum(dAtA, i, uint64(baseI-i))
-			i--
-			dAtA[i] = 0xa
-		}
-	}
-	return len(dAtA) - i, nil
-}
-
-func encodeVarintTarsum(dAtA []byte, offset int, v uint64) int {
-	offset -= sovTarsum(v)
-	base := offset
-	for v >= 1<<7 {
-		dAtA[offset] = uint8(v&0x7f | 0x80)
-		v >>= 7
-		offset++
-	}
-	dAtA[offset] = uint8(v)
-	return base
-}
-func (m *TarsumBackup) Size() (n int) {
-	if m == nil {
-		return 0
-	}
-	var l int
-	_ = l
-	if len(m.Hashes) > 0 {
-		for k, v := range m.Hashes {
-			_ = k
-			_ = v
-			mapEntrySize := 1 + len(k) + sovTarsum(uint64(len(k))) + 1 + len(v) + sovTarsum(uint64(len(v)))
-			n += mapEntrySize + 1 + sovTarsum(uint64(mapEntrySize))
-		}
-	}
-	return n
-}
-
-func sovTarsum(x uint64) (n int) {
-	return (math_bits.Len64(x|1) + 6) / 7
-}
-func sozTarsum(x uint64) (n int) {
-	return sovTarsum(uint64((x << 1) ^ uint64((int64(x) >> 63))))
-}
-func (this *TarsumBackup) String() string {
-	if this == nil {
-		return "nil"
-	}
-	keysForHashes := make([]string, 0, len(this.Hashes))
-	for k, _ := range this.Hashes {
-		keysForHashes = append(keysForHashes, k)
-	}
-	github_com_gogo_protobuf_sortkeys.Strings(keysForHashes)
-	mapStringForHashes := "map[string]string{"
-	for _, k := range keysForHashes {
-		mapStringForHashes += fmt.Sprintf("%v: %v,", k, this.Hashes[k])
-	}
-	mapStringForHashes += "}"
-	s := strings.Join([]string{`&TarsumBackup{`,
-		`Hashes:` + mapStringForHashes + `,`,
-		`}`,
-	}, "")
-	return s
-}
-func valueToStringTarsum(v interface{}) string {
-	rv := reflect.ValueOf(v)
-	if rv.IsNil() {
-		return "nil"
-	}
-	pv := reflect.Indirect(rv).Interface()
-	return fmt.Sprintf("*%v", pv)
-}
-func (m *TarsumBackup) Unmarshal(dAtA []byte) error {
-	l := len(dAtA)
-	iNdEx := 0
-	for iNdEx < l {
-		preIndex := iNdEx
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return ErrIntOverflowTarsum
-			}
-			if iNdEx >= l {
-				return io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= uint64(b&0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		fieldNum := int32(wire >> 3)
-		wireType := int(wire & 0x7)
-		if wireType == 4 {
-			return fmt.Errorf("proto: TarsumBackup: wiretype end group for non-group")
-		}
-		if fieldNum <= 0 {
-			return fmt.Errorf("proto: TarsumBackup: illegal tag %d (wire type %d)", fieldNum, wire)
-		}
-		switch fieldNum {
-		case 1:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Hashes", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTarsum
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthTarsum
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthTarsum
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if m.Hashes == nil {
-				m.Hashes = make(map[string]string)
-			}
-			var mapkey string
-			var mapvalue string
-			for iNdEx < postIndex {
-				entryPreIndex := iNdEx
-				var wire uint64
-				for shift := uint(0); ; shift += 7 {
-					if shift >= 64 {
-						return ErrIntOverflowTarsum
-					}
-					if iNdEx >= l {
-						return io.ErrUnexpectedEOF
-					}
-					b := dAtA[iNdEx]
-					iNdEx++
-					wire |= uint64(b&0x7F) << shift
-					if b < 0x80 {
-						break
-					}
-				}
-				fieldNum := int32(wire >> 3)
-				if fieldNum == 1 {
-					var stringLenmapkey uint64
-					for shift := uint(0); ; shift += 7 {
-						if shift >= 64 {
-							return ErrIntOverflowTarsum
-						}
-						if iNdEx >= l {
-							return io.ErrUnexpectedEOF
-						}
-						b := dAtA[iNdEx]
-						iNdEx++
-						stringLenmapkey |= uint64(b&0x7F) << shift
-						if b < 0x80 {
-							break
-						}
-					}
-					intStringLenmapkey := int(stringLenmapkey)
-					if intStringLenmapkey < 0 {
-						return ErrInvalidLengthTarsum
-					}
-					postStringIndexmapkey := iNdEx + intStringLenmapkey
-					if postStringIndexmapkey < 0 {
-						return ErrInvalidLengthTarsum
-					}
-					if postStringIndexmapkey > l {
-						return io.ErrUnexpectedEOF
-					}
-					mapkey = string(dAtA[iNdEx:postStringIndexmapkey])
-					iNdEx = postStringIndexmapkey
-				} else if fieldNum == 2 {
-					var stringLenmapvalue uint64
-					for shift := uint(0); ; shift += 7 {
-						if shift >= 64 {
-							return ErrIntOverflowTarsum
-						}
-						if iNdEx >= l {
-							return io.ErrUnexpectedEOF
-						}
-						b := dAtA[iNdEx]
-						iNdEx++
-						stringLenmapvalue |= uint64(b&0x7F) << shift
-						if b < 0x80 {
-							break
-						}
-					}
-					intStringLenmapvalue := int(stringLenmapvalue)
-					if intStringLenmapvalue < 0 {
-						return ErrInvalidLengthTarsum
-					}
-					postStringIndexmapvalue := iNdEx + intStringLenmapvalue
-					if postStringIndexmapvalue < 0 {
-						return ErrInvalidLengthTarsum
-					}
-					if postStringIndexmapvalue > l {
-						return io.ErrUnexpectedEOF
-					}
-					mapvalue = string(dAtA[iNdEx:postStringIndexmapvalue])
-					iNdEx = postStringIndexmapvalue
-				} else {
-					iNdEx = entryPreIndex
-					skippy, err := skipTarsum(dAtA[iNdEx:])
-					if err != nil {
-						return err
-					}
-					if (skippy < 0) || (iNdEx+skippy) < 0 {
-						return ErrInvalidLengthTarsum
-					}
-					if (iNdEx + skippy) > postIndex {
-						return io.ErrUnexpectedEOF
-					}
-					iNdEx += skippy
-				}
-			}
-			m.Hashes[mapkey] = mapvalue
-			iNdEx = postIndex
-		default:
-			iNdEx = preIndex
-			skippy, err := skipTarsum(dAtA[iNdEx:])
-			if err != nil {
-				return err
-			}
-			if (skippy < 0) || (iNdEx+skippy) < 0 {
-				return ErrInvalidLengthTarsum
-			}
-			if (iNdEx + skippy) > l {
-				return io.ErrUnexpectedEOF
-			}
-			iNdEx += skippy
-		}
-	}
-
-	if iNdEx > l {
-		return io.ErrUnexpectedEOF
-	}
-	return nil
-}
-func skipTarsum(dAtA []byte) (n int, err error) {
-	l := len(dAtA)
-	iNdEx := 0
-	depth := 0
-	for iNdEx < l {
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return 0, ErrIntOverflowTarsum
-			}
-			if iNdEx >= l {
-				return 0, io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= (uint64(b) & 0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		wireType := int(wire & 0x7)
-		switch wireType {
-		case 0:
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return 0, ErrIntOverflowTarsum
-				}
-				if iNdEx >= l {
-					return 0, io.ErrUnexpectedEOF
-				}
-				iNdEx++
-				if dAtA[iNdEx-1] < 0x80 {
-					break
-				}
-			}
-		case 1:
-			iNdEx += 8
-		case 2:
-			var length int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return 0, ErrIntOverflowTarsum
-				}
-				if iNdEx >= l {
-					return 0, io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				length |= (int(b) & 0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if length < 0 {
-				return 0, ErrInvalidLengthTarsum
-			}
-			iNdEx += length
-		case 3:
-			depth++
-		case 4:
-			if depth == 0 {
-				return 0, ErrUnexpectedEndOfGroupTarsum
-			}
-			depth--
-		case 5:
-			iNdEx += 4
-		default:
-			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
-		}
-		if iNdEx < 0 {
-			return 0, ErrInvalidLengthTarsum
-		}
-		if depth == 0 {
-			return iNdEx, nil
-		}
-	}
-	return 0, io.ErrUnexpectedEOF
-}
-
-var (
-	ErrInvalidLengthTarsum        = fmt.Errorf("proto: negative length found during unmarshaling")
-	ErrIntOverflowTarsum          = fmt.Errorf("proto: integer overflow")
-	ErrUnexpectedEndOfGroupTarsum = fmt.Errorf("proto: unexpected end of group")
-)
diff --git a/builder/remotecontext/tarsum.proto b/builder/remotecontext/tarsum.proto
deleted file mode 100644
index cb94240ba8..0000000000
--- a/builder/remotecontext/tarsum.proto
+++ /dev/null
@@ -1,7 +0,0 @@
-syntax = "proto3";
-
-package remotecontext; // no namespace because only used internally
-
-message TarsumBackup {
-  map<string, string> Hashes = 1;
-}
\ No newline at end of file
diff --git a/vendor.mod b/vendor.mod
index 4f0192033f..d92b12eccf 100644
--- a/vendor.mod
+++ b/vendor.mod
@@ -83,7 +83,6 @@ require (
 	github.com/sirupsen/logrus v1.9.0
 	github.com/spf13/cobra v1.7.0
 	github.com/spf13/pflag v1.0.5
-	github.com/tonistiigi/fsutil v0.0.0-20230105215944-fb433841cbfa
 	github.com/tonistiigi/go-archvariant v1.0.0
 	github.com/vbatts/tar-split v0.11.2
 	github.com/vishvananda/netlink v1.2.1-beta.2
@@ -167,6 +166,7 @@ require (
 	github.com/spdx/tools-golang v0.3.1-0.20230104082527-d6f58551be3f // indirect
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635 // indirect
 	github.com/tinylib/msgp v1.1.6 // indirect
+	github.com/tonistiigi/fsutil v0.0.0-20230105215944-fb433841cbfa // indirect
 	github.com/tonistiigi/go-actions-cache v0.0.0-20220404170428-0bdeb6e1eac7 // indirect
 	github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea // indirect
 	go.etcd.io/etcd/client/pkg/v3 v3.5.6 // indirect