removing compatiblity for py3.3

Author: tushdante

test/__init__.py

@@ -19,18 +19,7 @@
 SG_PWD  = os.getenv('SG_PWD') or 'SENDGRID_PASSWORD'
 
 class TestSendGrid(unittest.TestCase):
-    maxDiff = None
-
-    def assertDictEqual(self, d1, d2, msg=None): # assertEqual uses for dicts
-            for k,v1 in d1.items():
-                self.assertIn(k, d2, msg)
-                v2 = d2[k]
-                if(isinstance(v1, collections.Iterable) and
-                   not isinstance(v1, str)):
-                    self.assertItemsEqual(v1, v2, msg)
-                else:
-                    self.assertEqual(v1, v2, msg)
-            return True
+    
     def setUp(self):
         self.sg = SendGridClient(SG_USER, SG_PWD)