follow up cleanup after SupportPodPidLimits GA

Author: SergeyKanzhelev

staging/src/k8s.io/kubelet/config/v1beta1/types.go

@@ -482,7 +482,6 @@ type KubeletConfiguration struct {
 	// +optional
 	PodCIDR string `json:"podCIDR,omitempty"`
 	// PodPidsLimit is the maximum number of pids in any pod.
-	// Requires the SupportPodPidsLimit feature gate to be enabled.
 	// Dynamic Kubelet Config (beta): If dynamically updating this field, consider that
 	// lowering it may prevent container processes from forking after the change.
 	// Default: -1

test/e2e_node/pids_test.go

@@ -120,11 +120,8 @@ func runPodPidsLimitTests(f *framework.Framework) {
 // Serial because the test updates kubelet configuration.
 var _ = SIGDescribe("PodPidsLimit [Serial]", func() {
 	f := framework.NewDefaultFramework("pids-limit-test")
-	ginkgo.Context("With config updated with pids feature enabled", func() {
+	ginkgo.Context("With config updated with pids limits", func() {
 		tempSetCurrentKubeletConfig(f, func(initialConfig *kubeletconfig.KubeletConfiguration) {
-			if initialConfig.FeatureGates == nil {
-				initialConfig.FeatureGates = make(map[string]bool)
-			}
 			initialConfig.PodPidsLimit = int64(1024)
 		})
 		runPodPidsLimitTests(f)