fix staticcheck errors in pkg/controller/daemon.

Signed-off-by: Sakura <[email protected]>

Author: 928234269

hack/.staticcheck_failures

@@ -1,6 +1,5 @@
 cluster/images/etcd-version-monitor
 cluster/images/etcd/migrate
-pkg/controller/daemon
 pkg/controller/deployment
 pkg/controller/disruption
 pkg/controller/garbagecollector

pkg/controller/daemon/daemon_controller.go

@@ -305,16 +305,6 @@ func (dsc *DaemonSetsController) enqueue(ds *apps.DaemonSet) {
 	dsc.queue.Add(key)
 }
 
-func (dsc *DaemonSetsController) enqueueRateLimited(ds *apps.DaemonSet) {
-	key, err := controller.KeyFunc(ds)
-	if err != nil {
-		utilruntime.HandleError(fmt.Errorf("Couldn't get key for object %#v: %v", ds, err))
-		return
-	}
-
-	dsc.queue.AddRateLimited(key)
-}
-
 func (dsc *DaemonSetsController) enqueueDaemonSetAfter(obj interface{}, after time.Duration) {
 	key, err := controller.KeyFunc(obj)
 	if err != nil {

pkg/controller/daemon/daemon_controller_test.go

@@ -223,7 +223,6 @@ type fakePodControl struct {
 	podStore     cache.Store
 	podIDMap     map[string]*v1.Pod
 	expectations controller.ControllerExpectationsInterface
-	dsc          *daemonSetsController
 }
 
 func newFakePodControl() *fakePodControl {