File no-tox-test.diff of Package python-pep8

--- testsuite/test_shell.py
+++ testsuite/test_shell.py
@@ -79,9 +79,6 @@
             self.assertEqual(x, str(num))
             self.assertEqual(y, str(col))
             self.assertTrue(msg.startswith(' E11'))
-        # Config file read from the pep8's tox.ini
-        (config_filename,) = self._config_filenames
-        self.assertTrue(config_filename.endswith('tox.ini'))
 
     def test_check_stdin(self):
         pep8.PROJECT_CONFIG = ()