Merge pull request #66956 from mgdevstack/master-gc-orphandependent

Automatic merge from submit-queue (batch tested with PRs 58058, 67033, 66921, 66956). 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>.

Added comment to track deleteOptions.OrphanDependents e2e for conformance promotion in future

**What this PR does / why we need it**:
- Added a comment to track below mentioned e2e tests for conformance promotion in future.
- Prevents additional effort to evaluate again for promotion.

**E2E -**
- Garbage collector should orphan pods created by rc if deleteOptions.OrphanDependents is nil

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #65427 

**Special notes for your reviewer**:
https://github.com/kubernetes/kubernetes/issues/65427#issuecomment-409642330

**Release note**:

```release-note
NONE
```
/area conformance
@kubernetes/sig-architecture-pr-reviews

test/e2e/apimachinery/garbage_collector.go

@@ -461,6 +461,8 @@ var _ = SIGDescribe("Garbage collector", func() {
 		gatherMetrics(f)
 	})
 
+	// deleteOptions.OrphanDependents is deprecated in 1.7 and preferred to use the PropagationPolicy.
+	// Discussion is tracked under https://github.com/kubernetes/kubernetes/issues/65427 to promote for conformance in future.
 	It("should orphan pods created by rc if deleteOptions.OrphanDependents is nil", func() {
 		clientSet := f.ClientSet
 		rcClient := clientSet.CoreV1().ReplicationControllers(f.Namespace.Name)