Automatic merge from submit-queue
Fixes grace period in delete
**What this PR does / why we need it**: Fixes `kubectl delete` ignoring `--grace-period`.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/openshift/origin/issues/15060 found in OpenShift.
**Release note**:
```release-note
NONE
```