Revert "support CoreDNS use host network and config dns port (#10617)" (#11185)

This reverts commit bc5b38a771.

roles/kubernetes-apps/ansible/templates/coredns-deployment.yml.j2

@@ -24,7 +24,6 @@ spec:
       annotations:
         createdby: 'kubespray'
     spec:
-      hostNetwork: {{ coredns_host_network | default(false) }}
       securityContext:
         seccompProfile:
           type: RuntimeDefault
@@ -76,10 +75,10 @@ spec:
         - name: config-volume
           mountPath: /etc/coredns
         ports:
-        - containerPort: {{ coredns_port }}
+        - containerPort: 53
           name: dns
           protocol: UDP
-        - containerPort: {{ coredns_port }}
+        - containerPort: 53
           name: dns-tcp
           protocol: TCP
         - containerPort: 9153