Remove wrong skipped test.

Author: WaVEV

django_mongodb/features.py

@@ -162,9 +162,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
             "lookup.tests.LookupQueryingTests.test_filter_exists_lhs",
             "lookup.tests.LookupTests.test_exact_exists",
             "lookup.tests.LookupTests.test_nested_outerref_lhs",
-            # QuerySet.alias() doesn't work.
-            "annotations.tests.AliasTests.test_basic_alias_f_transform_annotation",
-            "annotations.tests.NonAggregateAnnotationTestCase.test_annotation_and_alias_filter_in_subquery",
             # annotate() with combined expressions doesn't work:
             # 'WhereNode' object has no attribute 'field'
             "lookup.tests.LookupQueryingTests.test_combined_annotated_lookups_in_filter",