Merge pull request #56960 from islinwb/remove_unused_code_ut_pkg

Automatic merge from submit-queue (batch tested with PRs 53631, 56960). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Remove unused code in UT files in pkg/

**What this PR does / why we need it**:
Remove unused code in UT files in pkg/ .

**Release note**:

```release-note
NONE
```

pkg/registry/extensions/controller/storage/storage_test.go

@@ -74,17 +74,6 @@ var validController = api.ReplicationController{
 	Spec:       validControllerSpec,
 }
 
-var validScale = autoscaling.Scale{
-	ObjectMeta: metav1.ObjectMeta{Name: "foo", Namespace: "test"},
-	Spec: autoscaling.ScaleSpec{
-		Replicas: validReplicas,
-	},
-	Status: autoscaling.ScaleStatus{
-		Replicas: 0,
-		Selector: "a=b",
-	},
-}
-
 func TestGet(t *testing.T) {
 	storage, _, si, destroyFunc := newStorage(t)
 	defer destroyFunc()