Merge pull request kubernetes#64520 from wgliang/master.cmd-unused

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>.

remove unused functions in cmd

**What this PR does / why we need it**:
/kind cleanup

**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
```

cmd/kubeadm/app/util/apiclient/wait.go

@@ -211,20 +211,6 @@ func (w *KubeWaiter) WaitForStaticPodHashChange(nodeName, component, previousHas
 	})
 }
 
-// getStaticPodControlPlaneHashes computes hashes for all the control plane's Static Pod resources
-func getStaticPodControlPlaneHashes(client clientset.Interface, nodeName string) (map[string]string, error) {
-
-	mirrorPodHashes := map[string]string{}
-	for _, component := range constants.MasterComponents {
-		hash, err := getStaticPodSingleHash(client, nodeName, component)
-		if err != nil {
-			return nil, err
-		}
-		mirrorPodHashes[component] = hash
-	}
-	return mirrorPodHashes, nil
-}
-
 // getStaticSinglePodHash computes hashes for a single Static Pod resource
 func getStaticPodSingleHash(client clientset.Interface, nodeName string, component string) (string, error) {
 

cmd/kubelet/app/options/globalflags.go

@@ -78,12 +78,6 @@ func registerDeprecated(global *flag.FlagSet, local *pflag.FlagSet, globalName,
 	local.Lookup(normalize(globalName)).Deprecated = deprecated
 }
 
-// pflagRegisterDeprecated registers the flag with pflagRegister, and then marks it deprecated
-func pflagRegisterDeprecated(global, local *pflag.FlagSet, globalName, deprecated string) {
-	pflagRegister(global, local, globalName)
-	local.Lookup(normalize(globalName)).Deprecated = deprecated
-}
-
 // addCredentialProviderFlags adds flags from k8s.io/kubernetes/pkg/credentialprovider
 func addCredentialProviderFlags(fs *pflag.FlagSet) {
 	// lookup flags in global flag set and re-register the values with our flagset