Fix remove etcd broken with etcdctl_api 3 (#6448)

roles/remove-node/remove-etcd-node/tasks/main.yml

@@ -18,7 +18,7 @@
     - inventory_hostname in groups['etcd']
 
 - name: Lookup etcd member id
-  shell: "{{ bin_dir }}/etcdctl member list | grep {{ node_ip }} | cut -d: -f1"
+  shell: "{{ bin_dir }}/etcdctl member list | grep {{ node_ip }} | cut -d, -f1"
   register: etcd_member_id
   ignore_errors: true
   changed_when: false