'Delete a volume.'

def delete_volume(self, volume):

    volume_name = self._translate_volume_name(volume['name'])
    LOG.debug('delete_volume:    volume    name:    %s.', volume_name)
    self._delete_clone_relation_by_volname(volume_name, False)
    self._remove_volume_from_group(volume_name)
    self._delete_volume(volume_name)
