remove nodes resource from CoreDNS RBAC manifest

This commit syncs RBAC from coredns/deployment and removes a get nodes
RBAC.

Historically the federation CoreDNS plugin needed the nodes resource to
fetch zone and region labels.

However, the CoreDNS federation plugin was deprecated and cleaned up a
long time ago and removed the Nodes RBAC requirement here in
`coredns/deployment` coredns.yaml.sed:
https://github.com/coredns/deployment/pull/229

This change however, never made it to `kubernetes/kubernetes`.

Signed-off-by: Nico Berlee <nico.berlee@on2it.net>

cluster/addons/dns/coredns/coredns.yaml.base

@@ -27,12 +27,6 @@ rules:
   verbs:
   - list
   - watch
-- apiGroups:
-  - ""
-  resources:
-  - nodes
-  verbs:
-  - get
 - apiGroups:
   - discovery.k8s.io
   resources:

cluster/addons/dns/coredns/coredns.yaml.in

@@ -27,12 +27,6 @@ rules:
   verbs:
   - list
   - watch
-- apiGroups:
-  - ""
-  resources:
-  - nodes
-  verbs:
-  - get
 - apiGroups:
   - discovery.k8s.io
   resources:

cluster/addons/dns/coredns/coredns.yaml.sed

@@ -27,12 +27,6 @@ rules:
   verbs:
   - list
   - watch
-- apiGroups:
-  - ""
-  resources:
-  - nodes
-  verbs:
-  - get
 - apiGroups:
   - discovery.k8s.io
   resources:

cmd/kubeadm/app/phases/addons/dns/manifests.go

@@ -200,12 +200,6 @@ rules:
   verbs:
   - list
   - watch
-- apiGroups:
-  - ""
-  resources:
-  - nodes
-  verbs:
-  - get
 - apiGroups:
   - discovery.k8s.io
   resources: