Remove unused AdjustedBaseAuthTokenMiddlewareTest

assertDictEqual isn't used, and the assertIsInstance message
should be consistent across versions. This leaves nothing in
AdjustedBaseAuthTokenMiddlewareTest so remove it.

Change-Id: I7d338c9b66c77ff81a79d1a1d5c8ebcc3dd300a2

keystoneclient/tests/test_auth_token_middleware.py

@@ -315,33 +315,6 @@ class BaseAuthTokenMiddlewareTest(testtools.TestCase):
             self.assertIsInstance(httpretty.last_request(),
                                   httpretty.core.HTTPrettyRequestEmpty)
 
-if tuple(sys.version_info)[0:2] < (2, 7):
-
-    # 2.6 doesn't have the assert dict equals so make sure that it exists
-    class AdjustedBaseAuthTokenMiddlewareTest(BaseAuthTokenMiddlewareTest):
-        def assertIsInstance(self, obj, cls, msg=None):
-            """Same as self.assertTrue(isinstance(obj, cls)), with a nicer
-            default message.
-            """
-            if not isinstance(obj, cls):
-                standardMsg = '%s is not an instance of %r' % (obj, cls)
-                self.fail(self._formatMessage(msg, standardMsg))
-
-        def assertDictEqual(self, d1, d2, msg=None):
-            # Simple version taken from 2.7
-            self.assertIsInstance(d1, dict,
-                                  'First argument is not a dictionary')
-            self.assertIsInstance(d2, dict,
-                                  'Second argument is not a dictionary')
-            if d1 != d2:
-                if msg:
-                    self.fail(msg)
-                else:
-                    standardMsg = '%r != %r' % (d1, d2)
-                    self.fail(standardMsg)
-
-    BaseAuthTokenMiddlewareTest = AdjustedBaseAuthTokenMiddlewareTest
-
 
 class MultiStepAuthTokenMiddlewareTest(BaseAuthTokenMiddlewareTest,
                                        testresources.ResourcedTestCase):