Delete a file on the server.

        Args:
            file_path (str): Path of the file to remove
            branch (str): Branch from which the file will be removed
            commit_message (str): Commit message for the deletion
            **kwargs: Extra options to send to the server (e.g. sudo)

        Raises:
            GitlabAuthenticationError: If authentication is not correct
            GitlabDeleteError: If the server cannot perform the request

def delete(self, file_path, branch, commit_message, **kwargs):
        """Delete a file on the server.

        Args:
            file_path (str): Path of the file to remove
            branch (str): Branch from which the file will be removed
            commit_message (str): Commit message for the deletion
            **kwargs: Extra options to send to the server (e.g. sudo)

        Raises:
            GitlabAuthenticationError: If authentication is not correct
            GitlabDeleteError: If the server cannot perform the request
        """
        path = '%s/%s' % (self.path, file_path.replace('/', '%2F'))
        data = {'branch': branch, 'commit_message': commit_message}
        self.gitlab.http_delete(path, query_data=data, **kwargs)