Addresses issue #6596.

Removes ForTesting_ReferencesAllowBlankSelfLinks.
Fixes controller's persistentvolumes unit tests.

pkg/kubectl/describe_test.go

@@ -39,10 +39,6 @@ type describeClient struct {
 	client.Interface
 }
 
-func init() {
-	api.ForTesting_ReferencesAllowBlankSelfLinks = true
-}
-
 func TestDescribePod(t *testing.T) {
 	fake := testclient.NewSimpleFake(&api.Pod{
 		ObjectMeta: api.ObjectMeta{