[Enum] Remove unused code from test_enum.py (GH-96986)

Lib/test/test_enum.py

@@ -4553,11 +4553,6 @@ class Quadruple(Enum):
 COMPLEX_A = 2j
 COMPLEX_B = 3j
 
-class _ModuleWrapper:
-    """We use this class as a namespace for swapping modules."""
-    def __init__(self, module):
-        self.__dict__.update(module.__dict__)
-
 class TestConvert(unittest.TestCase):
     def tearDown(self):
         # Reset the module-level test variables to their original integer
@@ -4597,12 +4592,6 @@ def test_convert_int(self):
         self.assertEqual(test_type.CONVERT_TEST_NAME_D, 5)
         self.assertEqual(test_type.CONVERT_TEST_NAME_E, 5)
         # Ensure that test_type only picked up names matching the filter.
-        int_dir = dir(int) + [
-                'CONVERT_TEST_NAME_A', 'CONVERT_TEST_NAME_B', 'CONVERT_TEST_NAME_C',
-                'CONVERT_TEST_NAME_D', 'CONVERT_TEST_NAME_E', 'CONVERT_TEST_NAME_F',
-                'CONVERT_TEST_SIGABRT', 'CONVERT_TEST_SIGIOT',
-                'CONVERT_TEST_EIO', 'CONVERT_TEST_EBUS',
-                ]
         extra = [name for name in dir(test_type) if name not in enum_dir(test_type)]
         missing = [name for name in enum_dir(test_type) if name not in dir(test_type)]
         self.assertEqual(
@@ -4644,7 +4633,6 @@ def test_convert_str(self):
         self.assertEqual(test_type.CONVERT_STR_TEST_1, 'hello')
         self.assertEqual(test_type.CONVERT_STR_TEST_2, 'goodbye')
         # Ensure that test_type only picked up names matching the filter.
-        str_dir = dir(str) + ['CONVERT_STR_TEST_1', 'CONVERT_STR_TEST_2']
         extra = [name for name in dir(test_type) if name not in enum_dir(test_type)]
         missing = [name for name in enum_dir(test_type) if name not in dir(test_type)]
         self.assertEqual(
@@ -4712,8 +4700,6 @@ def member_dir(member):
                 allowed.add(name)
     return sorted(allowed)
 
-missing = object()
-
 
 if __name__ == '__main__':
     unittest.main()