Appease lint.

Author: tseaver

gcloud/datastore/test_query.py

@@ -590,9 +590,8 @@ def test_next_page_w_cursors_w_bogus_more(self):
         dataset, connection = self._makeDataset()
         query = _Query(self._KIND, dataset, self._NAMESPACE)
         self._addQueryResults(dataset, cursor=self._END, more=True)
-        conn = dataset.connection()
-        epb, cursor, _  = conn._results.pop()
-        conn._results.append((epb, cursor, 4))  # invalid enum
+        epb, cursor, _ = connection._results.pop()
+        connection._results.append((epb, cursor, 4))  # invalid enum
         iterator = self._makeOne(query)
         self.assertRaises(ValueError, iterator.next_page)