Merge pull request #59306 from zhangxiaoyu-zidif/cleanup-require-kubeconfig

Automatic merge from submit-queue (batch tested with PRs 51323, 59306, 58991, 59050). 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>.

clean temporary para for require-kubeconfig

**What this PR does / why we need it**:
delete temporary require-kubeconfig

**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
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2018-02-06 10:40:34 -08:00 committed by GitHub
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@ -303,10 +303,6 @@ func (f *KubeletFlags) AddFlags(fs *pflag.FlagSet) {
fs.MarkDeprecated("experimental-bootstrap-kubeconfig", "Use --bootstrap-kubeconfig")
fs.StringVar(&f.BootstrapKubeconfig, "experimental-bootstrap-kubeconfig", f.BootstrapKubeconfig, "deprecated: use --bootstrap-kubeconfig")
// TODO: when pull-kubernetes-e2e-kops-aws does not need this parameter, delete requireKubeConfig.
var requireKubeConfig bool
fs.BoolVar(&requireKubeConfig, "require-kubeconfig", requireKubeConfig, "This flag is no longer necessary. It has been deprecated and will be removed in a future version.")
fs.MarkDeprecated("require-kubeconfig", "You no longer need to use --require-kubeconfig. This will be removed in a future version. Providing --kubeconfig enables API server mode, omitting --kubeconfig enables standalone mode unless --require-kubeconfig=true is also set. In the latter case, the legacy default kubeconfig path will be used until --require-kubeconfig is removed.")
fs.StringVar(&f.BootstrapKubeconfig, "bootstrap-kubeconfig", f.BootstrapKubeconfig, "Path to a kubeconfig file that will be used to get client certificate for kubelet. "+
"If the file specified by --kubeconfig does not exist, the bootstrap kubeconfig is used to request a client certificate from the API server. "+
"On success, a kubeconfig file referencing the generated client certificate and key is written to the path specified by --kubeconfig. "+