fix flannel deployment, remove docker bridge before restarting

roles/network_plugin/flannel/handlers/main.yml

@@ -1,4 +1,9 @@
 ---
+- name: delete default docker bridge
+  command: ip link delete docker0
+  ignore_errors: yes
+  notify: restart docker
+
 - name: restart docker
   command: /bin/true
   notify:
@@ -6,11 +11,6 @@
     - reload docker
     - reload kubelet
 
-- name: delete default docker bridge
-  command: ip link delete docker0
-  ignore_errors: yes
-  notify: restart docker
-
 - name : reload systemd
   shell: systemctl daemon-reload
   when: ansible_service_mgr == "systemd"