@wrap_check_policy
def delete_volume_metadata(self, context, volume, key):
    'Delete the given metadata item from an volume.'
    self.db.volume_metadata_delete(context, volume['id'], key)
Delete the given metadata item from an volume.
@wrap_check_policy
def delete_volume_metadata(self, context, volume, key):
    
    self.db.volume_metadata_delete(context, volume['id'], key)