Merge pull request #29083 from cpuguy83/fix_volume_rm_metadata

[1.12.x] Fix issue where volume metadata was not removed
(cherry picked from commit 7613b23a583dba87f18005076ecbc84b408ebc5c)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Conflicts:
	volume/store/store.go
	volume/store/store_test.go

volume/store/store_test.go

@@ -212,7 +212,7 @@ func TestDerefMultipleOfSameRef(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-
+	defer os.RemoveAll(dir)
 	s, err := New(dir)
 	if err != nil {
 		t.Fatal(err)