def remove_temporary_source(self):
if self.source_dir and os.path.exists(<EOL>os.path.join(self.source_dir, PIP_DELETE_MARKER_FILENAME)):<EOL><INDENT>logger.debug('<STR_LIT>', self.source_dir)<EOL>rmtree(self.source_dir)<EOL><DEDENT>self.source_dir = None<EOL>if self._temp_build_dir and os.path.exists(self._temp_build_dir):<EOL><INDENT>rmtree(self._temp_build_dir)<EOL><DEDENT>self._temp_build_dir = None<EOL>
Remove the source files from this requirement, if they are marked
        for deletion