remove before merge

Author: timgraham

django_mongodb/features.py

@@ -379,8 +379,8 @@ def django_test_expected_failures(self):
             "timezones.tests.NewDatabaseTests.test_query_datetimes_in_other_timezone",
         },
         "QuerySet.distinct() is not supported.": {
-            # TODO: remove underscore before merge
-            "lookup.tests.LookupTests._test_lookup_collision_distinct",
+            # TODO: add before merge
+            # "lookup.tests.LookupTests.test_lookup_collision_distinct",
             "update.tests.AdvancedTests.test_update_all",
         },
         "QuerySet.extra() is not supported.": {