Automatic merge from submit-queue (batch tested with PRs 55908, 55829, 55293, 55653, 55665). 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>.

Use go native func after upgrading to go1.9

**What this PR does / why we need it**:
Since we have already upgraded to go1.9 (#51375), use go native func after upgrading to go1.9.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref: #52033

**Special notes for your reviewer**:
/cc @aanm @bowei 

**Release note**:

```release-note
NONE
```