Update go dependencies

vendor/k8s.io/kubernetes/pkg/kubelet/kubelet.go

@@ -1244,12 +1244,10 @@ func (kl *Kubelet) StartGarbageCollection() {
 		}
 	}, ContainerGCPeriod, wait.NeverStop)
 
-	stopChan := make(chan struct{})
-	defer close(stopChan)
 	// when the high threshold is set to 100, stub the image GC manager
 	if kl.kubeletConfiguration.ImageGCHighThresholdPercent == 100 {
 		glog.V(2).Infof("ImageGCHighThresholdPercent is set 100, Disable image GC")
-		go func() { stopChan <- struct{}{} }()
+		return
 	}
 
 	prevImageGCFailed := false
@@ -1272,7 +1270,7 @@ func (kl *Kubelet) StartGarbageCollection() {
 
 			glog.V(vLevel).Infof("Image garbage collection succeeded")
 		}
-	}, ImageGCPeriod, stopChan)
+	}, ImageGCPeriod, wait.NeverStop)
 }
 
 // initializeModules will initialize internal modules that do not require the container runtime to be up.

vendor/k8s.io/kubernetes/pkg/kubelet/pod_workers.go

@@ -306,7 +306,7 @@ func killPodNow(podWorkers PodWorkers, recorder record.EventRecorder) eviction.K
 		type response struct {
 			err error
 		}
-		ch := make(chan response)
+		ch := make(chan response, 1)
 		podWorkers.UpdatePod(&UpdatePodOptions{
 			Pod:        pod,
 			UpdateType: kubetypes.SyncPodKill,