diff --git a/cmd/cert-approver/main.go b/cmd/cert-approver/main.go
index 9e891f262..52068a7c0 100644
--- a/cmd/cert-approver/main.go
+++ b/cmd/cert-approver/main.go
@@ -70,19 +70,26 @@ const (
 )
 
 var (
+	// ControllerName provides controller name
 	ControllerName = "csr-approver"
+	// NamePrefix specifies which name in certification request should be target to approve
 	NamePrefix     = "system:multus"
+	// Organization specifies which org in certification request should be target to approve
 	Organization   = []string{"system:multus"}
+	// Groups specifies which group in certification request should be target to approve
 	Groups         = sets.New[string]("system:nodes", "system:multus", "system:authenticated")
+	// UserPrefixes specifies which name prefix in certification request should be target to approve
 	UserPrefixes   = sets.New[string]("system:node", NamePrefix)
+	// Usages specifies which usage in certification request should be target to approve
 	Usages         = sets.New[certificatesv1.KeyUsage](
 		certificatesv1.UsageDigitalSignature,
 		certificatesv1.UsageClientAuth)
 )
 
+// NewCertController creates certcontroller
 func NewCertController() (*CertController, error) {
 	var clientset kubernetes.Interface
-	/* setup Kubernetes API client */
+	// setup Kubernetes API client
 	config, err := rest.InClusterConfig()
 	if err != nil {
 		return nil, err
@@ -131,6 +138,7 @@ func NewCertController() (*CertController, error) {
 	return c, nil
 }
 
+// Run starts controller
 func (c *CertController) Run(stopCh <-chan struct{}) {
 	defer utilruntime.HandleCrash()
 	defer c.queue.ShutDown()
@@ -347,7 +355,7 @@ func isApprovedOrDenied(status *certificatesv1.CertificateSigningRequestStatus)
 func main() {
 	klog.Infof("starting cert-approver")
 
-	//Start watching for pod creations
+	// Start watching for pod creations
 	certController, err := NewCertController()
 	if err != nil {
 		klog.Fatal(err)
diff --git a/pkg/multus/multus.go b/pkg/multus/multus.go
index 9fe2c84b5..77541fb56 100644
--- a/pkg/multus/multus.go
+++ b/pkg/multus/multus.go
@@ -814,21 +814,7 @@ func CmdDel(args *skel.CmdArgs, exec invoke.Exec, kubeClient *k8s.ClientInfo, po
 		return err
 	}
 
-	skipStatusUpdate := false
 	netns, err := ns.GetNS(args.Netns)
-	if err != nil {
-		// if NetNs is passed down by the Cloud Orchestration Engine, or if it called multiple times
-		// so don't return an error if the device is already removed.
-		// https://github.com/kubernetes/kubernetes/issues/43014#issuecomment-287164444
-		_, ok := err.(ns.NSPathNotExistErr)
-		skipStatusUpdate = true
-		if ok {
-			logging.Debugf("CmdDel: WARNING netns may not exist, netns: %s, err: %s", args.Netns, err)
-		} else {
-			logging.Debugf("CmdDel: WARNING failed to open netns %q: %v", netns, err)
-		}
-	}
-
 	if netns != nil {
 		defer netns.Close()
 	}
@@ -853,8 +839,6 @@ func CmdDel(args *skel.CmdArgs, exec invoke.Exec, kubeClient *k8s.ClientInfo, po
 	if err != nil {
 		// GetPod may be failed but just do print error in its log and continue to delete
 		logging.Errorf("Multus: GetPod failed: %v, but continue to delete", err)
-		// skip status update because k8s api seems to be stucked
-		skipStatusUpdate = true
 	}
 
 	// Read the cache to get delegates json for the pod
@@ -919,21 +903,6 @@ func CmdDel(args *skel.CmdArgs, exec invoke.Exec, kubeClient *k8s.ClientInfo, po
 		}
 	}
 
-	// unset the network status annotation in apiserver, only in case Multus as kubeconfig
-	if kubeClient != nil {
-		if !skipStatusUpdate {
-			if !types.CheckSystemNamespaces(string(k8sArgs.K8S_POD_NAMESPACE), in.SystemNamespaces) {
-				err := k8s.SetNetworkStatus(kubeClient, k8sArgs, nil, in)
-				if err != nil {
-					// error happen but continue to delete
-					logging.Errorf("Multus: error unsetting the networks status: %v", err)
-				}
-			}
-		} else {
-			logging.Debugf("WARNING: Unset SetNetworkStatus skipped")
-		}
-	}
-
 	e := delPlugins(exec, pod, args, k8sArgs, in.Delegates, len(in.Delegates)-1, in.RuntimeConfig, in)
 
 	// Enable Option only delegate plugin delete success to delete cache file