cleaning newNodeController from unsupported kubelet version

pkg/controller/node/node_controller.go

@@ -186,7 +186,6 @@ type Controller struct {
 	cidrAllocator     ipam.CIDRAllocator
 	taintManager      *scheduler.NoExecuteTaintManager
 
-	forcefullyDeletePod        func(*v1.Pod) error
 	nodeExistsInCloudProvider  func(types.NodeName) (bool, error)
 	computeZoneStateFunc       func(nodeConditions []*v1.NodeCondition) (int, ZoneState)
 	enterPartialDisruptionFunc func(nodeNum int) float32
@@ -285,9 +284,6 @@ func NewNodeController(
 		serviceCIDR:            serviceCIDR,
 		allocateNodeCIDRs:      allocateNodeCIDRs,
 		allocatorType:          allocatorType,
-		forcefullyDeletePod: func(p *v1.Pod) error {
-			return util.ForcefullyDeletePod(kubeClient, p)
-		},
 		nodeExistsInCloudProvider: func(nodeName types.NodeName) (bool, error) {
 			return util.NodeExistsInCloudProvider(cloud, nodeName)
 		},

pkg/controller/node/util/controller_utils.go

@@ -129,17 +129,6 @@ func SetPodTerminationReason(kubeClient clientset.Interface, pod *v1.Pod, nodeNa
 	return updatedPod, nil
 }
 
-// ForcefullyDeletePod deletes the pod immediately.
-func ForcefullyDeletePod(c clientset.Interface, pod *v1.Pod) error {
-	var zero int64
-	glog.Infof("NodeController is force deleting Pod: %v:%v", pod.Namespace, pod.Name)
-	err := c.Core().Pods(pod.Namespace).Delete(pod.Name, &metav1.DeleteOptions{GracePeriodSeconds: &zero})
-	if err == nil {
-		glog.V(4).Infof("forceful deletion of %s succeeded", pod.Name)
-	}
-	return err
-}
-
 // ForcefullyDeleteNode deletes the node immediately. The pods on the
 // node are cleaned up by the podGC.
 func ForcefullyDeleteNode(kubeClient clientset.Interface, nodeName string) error {