def delete_file(self, share_name, directory_name, file_name, timeout=None):
_validate_not_none('<STR_LIT>', share_name)<EOL>_validate_not_none('<STR_LIT>', file_name)<EOL>request = HTTPRequest()<EOL>request.method = '<STR_LIT>'<EOL>request.host = self._get_host()<EOL>request.path = _get_path(share_name, directory_name, file_name)<EOL>request.query = [('<STR_LIT>', _int_to_str(timeout))]<EOL>self._perform_request(request)<EOL>
Marks the specified file for deletion. The file is later
deleted during garbage collection.

:param str share_name:
    Name of existing share.
:param str directory_name:
    The path to the directory.
:param str file_name:
    Name of existing file.
:param int timeout:
    The timeout parameter is expressed in seconds.