remove /var/lib/aodh in aodo-api

Change-Id: I0b0d287e575c17b81692c6e31be9a9ee11dc67fa

ansible/roles/aodh/tasks/start.yml

@@ -8,7 +8,6 @@
     volumes:
       - "{{ node_config_directory }}/aodh-api/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
-      - "aodh:/var/lib/aodh/"
       - "kolla_logs:/var/log/kolla/"
   when: inventory_hostname in groups['aodh-api']