cleanup some dead kubelet code

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"
@@ -406,10 +405,6 @@ func TestSyncPodsDeletesWhenSourcesAreReady(t *testing.T) {
 	fakeRuntime.AssertKilledPods([]string{"12345678"})
 }
 
-type testNodeLister struct {
-	nodes []*v1.Node
-}
-
 type testNodeInfo struct {
 	nodes []*v1.Node
 }
@@ -423,10 +418,6 @@ 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)

pkg/kubelet/kuberuntime/kuberuntime_manager.go

@@ -803,24 +803,6 @@ func (m *kubeGenericRuntimeManager) killPodWithSyncResult(pod *v1.Pod, runningPo
 	return
 }
 
-// isHostNetwork checks whether the pod is running in host-network mode.
-func (m *kubeGenericRuntimeManager) isHostNetwork(podSandBoxID string, pod *v1.Pod) (bool, error) {
-	if pod != nil {
-		return kubecontainer.IsHostNetworkPod(pod), nil
-	}
-
-	podStatus, err := m.runtimeService.PodSandboxStatus(podSandBoxID)
-	if err != nil {
-		return false, err
-	}
-
-	if podStatus.GetLinux().GetNamespaces().GetOptions().GetNetwork() == runtimeapi.NamespaceMode_NODE {
-		return true, nil
-	}
-
-	return false, nil
-}
-
 // GetPodStatus retrieves the status of the pod, including the
 // information of all containers in the pod that are visible in Runtime.
 func (m *kubeGenericRuntimeManager) GetPodStatus(uid kubetypes.UID, name, namespace string) (*kubecontainer.PodStatus, error) {

pkg/kubelet/runtime.go

@@ -53,12 +53,6 @@ func (s *runtimeState) setRuntimeSync(t time.Time) {
 	s.lastBaseRuntimeSync = t
 }
 
-func (s *runtimeState) setInternalError(err error) {
-	s.Lock()
-	defer s.Unlock()
-	s.internalError = err
-}
-
 func (s *runtimeState) setNetworkState(err error) {
 	s.Lock()
 	defer s.Unlock()