Revert "bpo-38659: [Enum] add _simple_enum decorator (GH-25285)" (GH-25476)

This reverts commit dbac8f40e8.

Lib/test/test_pstats.py

@@ -3,7 +3,6 @@ import unittest
 from test import support
 from io import StringIO
 from pstats import SortKey
-from enum import StrEnum, _test_simple_enum
 
 import pstats
 import cProfile
@@ -68,25 +67,6 @@ class StatsTestCase(unittest.TestCase):
             self.assertEqual(
                     self.stats.sort_type,
                     self.stats.sort_arg_dict_default[member.value][-1])
-        class CheckedSortKey(StrEnum):
-            CALLS = 'calls', 'ncalls'
-            CUMULATIVE = 'cumulative', 'cumtime'
-            FILENAME = 'filename', 'module'
-            LINE = 'line'
-            NAME = 'name'
-            NFL = 'nfl'
-            PCALLS = 'pcalls'
-            STDNAME = 'stdname'
-            TIME = 'time', 'tottime'
-            def __new__(cls, *values):
-                value = values[0]
-                obj = str.__new__(cls, value)
-                obj._value_ = value
-                for other_value in values[1:]:
-                    cls._value2member_map_[other_value] = obj
-                obj._all_values = values
-                return obj
-        _test_simple_enum(CheckedSortKey, SortKey)
 
     def test_sort_starts_mix(self):
         self.assertRaises(TypeError, self.stats.sort_stats,