Automatic merge from submit-queue (batch tested with PRs 62726, 60085, 62583). 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>.
Update github.com/stretchr/testify to v1.2.1
cd $GOPATH/src/k8s.io/kubernetes
hack/godep-restore.sh
rm -rf Godeps
rm -rf vendor
hack/godep-save.sh
**What this PR does / why we need it**:
v1.2.1 of Testify includes new functions (e.g., ElementsMatch) that make it easier to compare data structures such as slices.
**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 #
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Kubernetes-commit: 4761788b2afa42a4573a6794902eb93fe666d5c5