Merge pull request #64451 from wgliang/master.remove-kubelet

Automatic merge from submit-queue (batch tested with PRs 64688, 64451, 64504, 64506, 56358). 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>.

cleanup some dead kubelet code

**Release note**:

```release-note
NONE
```

pkg/kubelet/kubelet_test.go

@@ -31,7 +31,6 @@ import (
 	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/clock"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
@@ -436,10 +435,6 @@ func TestSyncPodsDeletesWhenSourcesAreReady(t *testing.T) {
 	fakeRuntime.AssertKilledPods([]string{"12345678"})
 }
 
-type testNodeLister struct {
-	nodes []*v1.Node
-}
-
 type testNodeInfo struct {
 	nodes []*v1.Node
 }
@@ -453,10 +448,6 @@ func (ls testNodeInfo) GetNodeInfo(id string) (*v1.Node, error) {
 	return nil, fmt.Errorf("Node with name: %s does not exist", id)
 }
 
-func (ls testNodeLister) List(selector labels.Selector) ([]*v1.Node, error) {
-	return ls.nodes, nil
-}
-
 func checkPodStatus(t *testing.T, kl *Kubelet, pod *v1.Pod, phase v1.PodPhase) {
 	status, found := kl.statusManager.GetPodStatus(pod.UID)
 	require.True(t, found, "Status of pod %q is not found in the status map", pod.UID)