def volume_metadata_delete(context, volume_id, key, meta_type=common.METADATA_TYPES.user):
 return IMPL.volume_metadata_delete(context, volume_id, key, meta_type)

def volume_metadata_delete ( context , volume_id , key , meta_type = common . METADATA_TYPES . user ) : return IMPL . volume_metadata_delete ( context , volume_id , key , meta_type )
delete the given metadata item .