drop resource_restart_flag
drop resource_restart_flag

With the removal of the last non-bundle implementation of manila
we can remove the resource_restart_flag() mechanism which was used
to signal the restart of non-bundle services.

Change-Id: I3bf4db1d85429e98c948d7ee049cfa78b8956fe0

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo