Remove dupe test

Author: Grace Yim

test/test_toopher_iframe.py

@@ -214,10 +214,6 @@ def test_is_authentication_granted_returns_false_when_missing_keys(self):
         authentication_granted = self.iframe_api.is_authentication_granted(self._get_urlencoded_auth_request_postback_data(data), ToopherIframeTests.request_token)
         self.assertFalse(authentication_granted)
 
-    def test_is_authentication_granted_returns_false_when_process_postback_returns_user(self):
-        authentication_granted = self.iframe_api.is_authentication_granted(self._get_urlencoded_user_postback_data(), ToopherIframeTests.request_token)
-        self.assertFalse(authentication_granted)
-
     def test_get_user_management_url(self):
         expected = 'https://api.toopher.test/v1/web/manage_user?username=jdoe&reset_email=jdoe%40example.com&expires=1300&v=2&oauth_nonce=12345678&oauth_timestamp=1000&oauth_version=1.0&oauth_signature_method=HMAC-SHA1&oauth_consumer_key=abcdefg&oauth_signature=NjwH5yWPE2CCJL8v%2FMNknL%2BeTpE%3D'
         self.assertEqual(expected, self.iframe_api.get_user_management_url('jdoe', 'jdoe@example.com'))