'Finds a Dell replay by replayid string and expires it.
Once marked for expiration we do not return the replay as a snapshot
even though it might still exist.  (Backend requirements.)
:param scvolume: Dell volume object.
:param replayid: Name to search for.  This is a portion of the snapshot
ID as we do not have space for the entire GUID in the
replay description.
:returns: Boolean for success or failure.'

def delete_replay(self, scvolume, replayid):

    ret = True
    LOG.debug('Expiring    replay    %s', replayid)
    replay = self.find_replay(scvolume, replayid)
    if (replay is not None):
        r = self.client.post(('StorageCenter/ScReplay/%s/Expire' % self._get_id(replay)), {}, True)
        ret = self._check_result(r)
    return ret
