Automatic merge from submit-queue (batch tested with PRs 63669, 63511, 63561, 63289). 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>.

remove legacyscheme dep from printFlags

**Release note**:
```release-note
NONE
```

Breaks PrintFlags dependency on legacyscheme
Prerequisite to https://github.com/kubernetes/kubernetes/pull/63402

cc @deads2k @soltysh