'Deletes arbitrary metadata on container.'

def delete_container_metadata(self, container_name, metadata, metadata_prefix='X-Remove-Container-Meta-'):

    url = str(container_name)
    headers = {}
    if (metadata is not None):
        for item in metadata:
            headers[(metadata_prefix + item)] = metadata[item]
    (resp, body) = self.post(url, body=None, headers=headers)
    self.expected_success(204, resp.status)
    return (resp, body)
