update: restart iscsigws daemons after upgrade

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>
(cherry picked from commit c7708eb4582f65717599d2d7bee7a7a5885ecc2b)