Automatic merge from submit-queue. 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>.

Enable golinting for scheduler packages.

**What this PR does / why we need it**:
Enable golinting for scheduler packages

**Which issue(s) this PR fixes**:
Fixes #58234 

**Special notes for your reviewer**:
- `pkg/scheduler/api` and `pkg/scheduler/api/v1` are not removed from `hack/.golint_failures`, because there are auto-generated go files by `deepcopy-gen` in the package, which have golint errors and are not suggested manually edited.
- Please help to refine the comments if there are error or inaccurate descriptions. Thanks! 

**Release note**:

```release-note
Enable golint for `pkg/scheduler` and fix the golint errors in it.
```