Stop templating kube-system namespace and creating it (#2545)

Kubernetes makes this namespace automatically, so there is
no need for kubespray to manage it.

roles/network_plugin/cilium/templates/cilium-config.yml.j2

@@ -2,7 +2,7 @@ kind: ConfigMap
 apiVersion: v1
 metadata:
   name: cilium-config
-  namespace: {{ system_namespace }}
+  namespace: kube-system
 data:
   # This etcd-config contains the etcd endpoints of your cluster. If you use
   # TLS please make sure you uncomment the ca-file line and add the respective

roles/network_plugin/cilium/templates/cilium-crb.yml.j2

@@ -10,6 +10,6 @@ roleRef:
 subjects:
 - kind: ServiceAccount
   name: cilium
-  namespace: {{ system_namespace }}
+  namespace: kube-system
 - kind: Group
   name: system:nodes

roles/network_plugin/cilium/templates/cilium-ds.yml.j2

@@ -3,7 +3,7 @@ apiVersion: extensions/v1beta1
 kind: DaemonSet
 metadata:
   name: cilium
-  namespace: {{ system_namespace }}
+  namespace: kube-system
 spec:
   template:
     metadata:

roles/network_plugin/cilium/templates/cilium-sa.yml.j2

@@ -3,4 +3,4 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: cilium
-  namespace: {{ system_namespace }}
+  namespace: kube-system