update: restart iscsigws daemons after upgrade

In containerized context, containers aren't stopped early in the
sequence.
It means they aren't restarted after the upgrade because the task is
just checking the daemon status is started (eg: `state: started`).

This commit also removes the task which ensure services are started
because it's already done in the role ceph-iscsigw.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>

infrastructure-playbooks/rolling_update.yml

@@ -874,7 +874,6 @@
         - rbd-target-api
         - rbd-target-gw
         - tcmu-runner
-      when: not containerized_deployment | bool
 
     - import_role:
         name: ceph-defaults
@@ -893,18 +892,6 @@
     - import_role:
         name: ceph-iscsi-gw
 
-    - name: start ceph iscsi services
-      systemd:
-        name: '{{ item }}'
-        state: started
-        enabled: yes
-        masked: no
-      with_items:
-        - tcmu-runner
-        - rbd-target-api
-        - rbd-target-gw
-      when: not containerized_deployment | bool
-
 
 - name: upgrade ceph client node
   vars: