remove cloud controller manager docs on using Initializers for PV labeling (#12375)

content/en/examples/admin/cloud/pvl-initializer-config.yaml

@@ -1,13 +0,0 @@
-kind: InitializerConfiguration
-apiVersion: admissionregistration.k8s.io/v1alpha1
-metadata:
-  name: pvlabel.kubernetes.io
-initializers:
-  - name: pvlabel.kubernetes.io
-    rules:
-    - apiGroups:
-      - ""
-      apiVersions:
-      - "*"
-      resources:
-      - persistentvolumes

content/en/examples/examples_test.go

@@ -298,8 +298,7 @@ func TestExampleObjectSchemas(t *testing.T) {
 			"namespace-prod": {&api.Namespace{}},
 		},
 		"admin/cloud": {
-			"ccm-example":            {&api.ServiceAccount{}, &rbac.ClusterRoleBinding{}, &extensions.DaemonSet{}},
-			"pvl-initializer-config": {&admissionregistration.InitializerConfiguration{}},
+			"ccm-example": {&api.ServiceAccount{}, &rbac.ClusterRoleBinding{}, &extensions.DaemonSet{}},
 		},
 		"admin/dns": {
 			"busybox":                   {&api.Pod{}},