Merge "tripleo_container_rm: use loop instead of with_items" into stable/train

tripleo_ansible/roles/tripleo-container-rm/tasks/main.yml

@@ -15,6 +15,6 @@
 # under the License.
 
 - include_tasks: "tripleo_{{ tripleo_container_cli }}_container_rm.yml"
-  vars:
-    container: "{{ item }}"
-  with_items: "{{ tripleo_containers_to_rm }}"
+  loop: "{{ tripleo_containers_to_rm }}"
+  loop_control:
+    loop_var: container