Remove wrong __class_getitem__

jopemachine · youknowone · commit e0c2b2f69446 · 2023-02-20T14:53:40.000+09:00
diff --git a/Lib/functools.py b/Lib/functools.py
@@ -333,8 +333,6 @@ def __setstate__(self, state):
         self.args = args
         self.keywords = kwds
 
-    __class_getitem__ = classmethod(GenericAlias)
-
 try:
     from _functools import partial
 except ImportError:
