remove namespace from ClusterRole (#4856)

roles/kubernetes-apps/cluster_roles/templates/psp-cr.yml.j2

@@ -20,7 +20,6 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: psp:restricted
-  namespace: kube-system
   labels:
     kubernetes.io/cluster-service: "true"
     addonmanager.kubernetes.io/mode: Reconcile