Revert "bpo-38659: [Enum] add _simple_enum decorator (GH-25285)" (GH-25476)
This reverts commit dbac8f40e81eb0a29dc833e6409a1abf47467da6.
diff --git a/Lib/ast.py b/Lib/ast.py
index 703f68a..e46ab43 100644
--- a/Lib/ast.py
+++ b/Lib/ast.py
@@ -27,7 +27,7 @@
import sys
from _ast import *
from contextlib import contextmanager, nullcontext
-from enum import IntEnum, auto, _simple_enum
+from enum import IntEnum, auto
def parse(source, filename='<unknown>', mode='exec', *,
@@ -636,8 +636,7 @@ class Param(expr_context):
# We unparse those infinities to INFSTR.
_INFSTR = "1e" + repr(sys.float_info.max_10_exp + 1)
-@_simple_enum(IntEnum)
-class _Precedence:
+class _Precedence(IntEnum):
"""Precedence table that originated from python grammar."""
TUPLE = auto()