Revert "Fix spurious errors on builtins.open (python#15161)"

hauntsaninja · hauntsaninja · commit 55e232f9dacb · 2023-06-23T17:36:43.000-07:00
This reverts commit 66602fc.
diff --git a/mypy/semanal_main.py b/mypy/semanal_main.py
@@ -75,7 +75,6 @@
     "abc",
     "collections",
     "collections.abc",
-    "typing_extensions",
 ]
 
 
