diff --git a/libnetwork/idm/idm.go b/libnetwork/idm/idm.go
deleted file mode 100644
index 49d16037a9..0000000000
--- a/libnetwork/idm/idm.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Package idm manages reservation/release of numerical ids from a configured set of contiguous ids
-package idm
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/docker/docker/libnetwork/bitseq"
-	"github.com/docker/docker/libnetwork/datastore"
-)
-
-// Idm manages the reservation/release of numerical ids from a contiguous set
-type Idm struct {
-	start  uint64
-	end    uint64
-	handle *bitseq.Handle
-}
-
-// New returns an instance of id manager for a [start,end] set of numerical ids
-func New(ds datastore.DataStore, id string, start, end uint64) (*Idm, error) {
-	if id == "" {
-		return nil, errors.New("Invalid id")
-	}
-	if end <= start {
-		return nil, fmt.Errorf("Invalid set range: [%d, %d]", start, end)
-	}
-
-	h, err := bitseq.NewHandle("idm", ds, id, 1+end-start)
-	if err != nil {
-		return nil, fmt.Errorf("failed to initialize bit sequence handler: %s", err.Error())
-	}
-
-	return &Idm{start: start, end: end, handle: h}, nil
-}
-
-// GetID returns the first available id in the set
-func (i *Idm) GetID(serial bool) (uint64, error) {
-	if i.handle == nil {
-		return 0, errors.New("ID set is not initialized")
-	}
-	ordinal, err := i.handle.SetAny(serial)
-	return i.start + ordinal, err
-}
-
-// GetSpecificID tries to reserve the specified id
-func (i *Idm) GetSpecificID(id uint64) error {
-	if i.handle == nil {
-		return errors.New("ID set is not initialized")
-	}
-
-	if id < i.start || id > i.end {
-		return errors.New("Requested id does not belong to the set")
-	}
-
-	return i.handle.Set(id - i.start)
-}
-
-// GetIDInRange returns the first available id in the set within a [start,end] range
-func (i *Idm) GetIDInRange(start, end uint64, serial bool) (uint64, error) {
-	if i.handle == nil {
-		return 0, errors.New("ID set is not initialized")
-	}
-
-	if start < i.start || end > i.end {
-		return 0, errors.New("Requested range does not belong to the set")
-	}
-
-	ordinal, err := i.handle.SetAnyInRange(start-i.start, end-i.start, serial)
-
-	return i.start + ordinal, err
-}
-
-// Release releases the specified id
-func (i *Idm) Release(id uint64) {
-	i.handle.Unset(id - i.start)
-}
diff --git a/libnetwork/idm/idm_test.go b/libnetwork/idm/idm_test.go
deleted file mode 100644
index 54055787ba..0000000000
--- a/libnetwork/idm/idm_test.go
+++ /dev/null
@@ -1,294 +0,0 @@
-package idm
-
-import (
-	"testing"
-)
-
-func TestNew(t *testing.T) {
-	_, err := New(nil, "", 0, 1)
-	if err == nil {
-		t.Fatal("Expected failure, but succeeded")
-	}
-
-	_, err = New(nil, "myset", 1<<10, 0)
-	if err == nil {
-		t.Fatal("Expected failure, but succeeded")
-	}
-
-	i, err := New(nil, "myset", 0, 10)
-	if err != nil {
-		t.Fatalf("Unexpected failure: %v", err)
-	}
-	if i.handle == nil {
-		t.Fatal("set is not initialized")
-	}
-	if i.start != 0 {
-		t.Fatal("unexpected start")
-	}
-	if i.end != 10 {
-		t.Fatal("unexpected end")
-	}
-}
-
-func TestAllocate(t *testing.T) {
-	i, err := New(nil, "myids", 50, 52)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err = i.GetSpecificID(49); err == nil {
-		t.Fatal("Expected failure but succeeded")
-	}
-
-	if err = i.GetSpecificID(53); err == nil {
-		t.Fatal("Expected failure but succeeded")
-	}
-
-	o, err := i.GetID(false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 50 {
-		t.Fatalf("Unexpected first id returned: %d", o)
-	}
-
-	err = i.GetSpecificID(50)
-	if err == nil {
-		t.Fatal(err)
-	}
-
-	o, err = i.GetID(false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 51 {
-		t.Fatalf("Unexpected id returned: %d", o)
-	}
-
-	o, err = i.GetID(false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 52 {
-		t.Fatalf("Unexpected id returned: %d", o)
-	}
-
-	o, err = i.GetID(false)
-	if err == nil {
-		t.Fatalf("Expected failure but succeeded: %d", o)
-	}
-
-	i.Release(50)
-
-	o, err = i.GetID(false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 50 {
-		t.Fatal("Unexpected id returned")
-	}
-
-	i.Release(52)
-	err = i.GetSpecificID(52)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestUninitialized(t *testing.T) {
-	i := &Idm{}
-
-	if _, err := i.GetID(false); err == nil {
-		t.Fatal("Expected failure but succeeded")
-	}
-
-	if err := i.GetSpecificID(44); err == nil {
-		t.Fatal("Expected failure but succeeded")
-	}
-}
-
-func TestAllocateInRange(t *testing.T) {
-	i, err := New(nil, "myset", 5, 10)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	o, err := i.GetIDInRange(6, 6, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 6 {
-		t.Fatalf("Unexpected id returned. Expected: 6. Got: %d", o)
-	}
-
-	if err = i.GetSpecificID(6); err == nil {
-		t.Fatalf("Expected failure but succeeded")
-	}
-
-	o, err = i.GetID(false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 5 {
-		t.Fatalf("Unexpected id returned. Expected: 5. Got: %d", o)
-	}
-
-	i.Release(6)
-
-	o, err = i.GetID(false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 6 {
-		t.Fatalf("Unexpected id returned. Expected: 6. Got: %d", o)
-	}
-
-	for n := 7; n <= 10; n++ {
-		o, err := i.GetIDInRange(7, 10, false)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != uint64(n) {
-			t.Fatalf("Unexpected id returned. Expected: %d. Got: %d", n, o)
-		}
-	}
-
-	if err = i.GetSpecificID(7); err == nil {
-		t.Fatalf("Expected failure but succeeded")
-	}
-
-	if err = i.GetSpecificID(10); err == nil {
-		t.Fatalf("Expected failure but succeeded")
-	}
-
-	i.Release(10)
-
-	o, err = i.GetIDInRange(5, 10, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 10 {
-		t.Fatalf("Unexpected id returned. Expected: 10. Got: %d", o)
-	}
-
-	i.Release(5)
-
-	o, err = i.GetIDInRange(5, 10, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 5 {
-		t.Fatalf("Unexpected id returned. Expected: 5. Got: %d", o)
-	}
-
-	for n := 5; n <= 10; n++ {
-		i.Release(uint64(n))
-	}
-
-	for n := 5; n <= 10; n++ {
-		o, err := i.GetIDInRange(5, 10, false)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != uint64(n) {
-			t.Fatalf("Unexpected id returned. Expected: %d. Got: %d", n, o)
-		}
-	}
-
-	for n := 5; n <= 10; n++ {
-		if err = i.GetSpecificID(uint64(n)); err == nil {
-			t.Fatalf("Expected failure but succeeded for id: %d", n)
-		}
-	}
-
-	// New larger set
-	ul := uint64((1 << 24) - 1)
-	i, err = New(nil, "newset", 0, ul)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	o, err = i.GetIDInRange(4096, ul, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 4096 {
-		t.Fatalf("Unexpected id returned. Expected: 4096. Got: %d", o)
-	}
-
-	o, err = i.GetIDInRange(4096, ul, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 4097 {
-		t.Fatalf("Unexpected id returned. Expected: 4097. Got: %d", o)
-	}
-
-	o, err = i.GetIDInRange(4096, ul, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 4098 {
-		t.Fatalf("Unexpected id returned. Expected: 4098. Got: %d", o)
-	}
-}
-
-func TestAllocateSerial(t *testing.T) {
-	i, err := New(nil, "myids", 50, 55)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err = i.GetSpecificID(49); err == nil {
-		t.Fatal("Expected failure but succeeded")
-	}
-
-	if err = i.GetSpecificID(56); err == nil {
-		t.Fatal("Expected failure but succeeded")
-	}
-
-	o, err := i.GetID(true)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 50 {
-		t.Fatalf("Unexpected first id returned: %d", o)
-	}
-
-	err = i.GetSpecificID(50)
-	if err == nil {
-		t.Fatal(err)
-	}
-
-	o, err = i.GetID(true)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 51 {
-		t.Fatalf("Unexpected id returned: %d", o)
-	}
-
-	o, err = i.GetID(true)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 52 {
-		t.Fatalf("Unexpected id returned: %d", o)
-	}
-
-	i.Release(50)
-
-	o, err = i.GetID(true)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != 53 {
-		t.Fatal("Unexpected id returned")
-	}
-
-	i.Release(52)
-	err = i.GetSpecificID(52)
-	if err != nil {
-		t.Fatal(err)
-	}
-}