'Delete a snapVx snapshot of a volume.
:param array: the array serial number
:param snap_name: the snapshot name
:param source_device_id: the source device id'

def delete_volume_snap(self, array, snap_name, source_device_id):

    LOG.debug('Delete    SnapVx:    %(snap_name)s    for    volume    %(vol)s.', {'vol': source_device_id, 'snap_name': snap_name})
    self.rest.delete_volume_snap(array, snap_name, source_device_id)
