Remove obsolete OptExcInfo from sys (#13117)

stdlib/sys/__init__.pyi

@@ -12,7 +12,6 @@ _T = TypeVar("_T")
 
 # see https://github.com/python/typeshed/issues/8513#issue-1333671093 for the rationale behind this alias
 _ExitCode: TypeAlias = str | int | None
-_OptExcInfo: TypeAlias = OptExcInfo  # noqa: Y047  # TODO: obsolete, remove fall 2022 or later
 
 # ----- sys variables -----
 if sys.platform != "win32":

stdlib/wsgiref/types.pyi

@@ -1,5 +1,5 @@
+from _typeshed import OptExcInfo
 from collections.abc import Callable, Iterable, Iterator
-from sys import _OptExcInfo
 from typing import Any, Protocol
 from typing_extensions import TypeAlias
 
@@ -7,7 +7,7 @@ __all__ = ["StartResponse", "WSGIEnvironment", "WSGIApplication", "InputStream",
 
 class StartResponse(Protocol):
     def __call__(
-        self, status: str, headers: list[tuple[str, str]], exc_info: _OptExcInfo | None = ..., /
+        self, status: str, headers: list[tuple[str, str]], exc_info: OptExcInfo | None = ..., /
     ) -> Callable[[bytes], object]: ...
 
 WSGIEnvironment: TypeAlias = dict[str, Any]

stubs/pynput/pynput/_util.pyi

@@ -1,5 +1,5 @@
-import sys
 import threading
+from _typeshed import OptExcInfo
 from collections.abc import Callable
 from queue import Queue
 from types import ModuleType, TracebackType
@@ -28,7 +28,7 @@ class AbstractListener(threading.Thread):
     _thread: threading.Thread  # undocumented
     _condition: threading.Condition  # undocumented
     _ready: bool  # undocumented
-    _queue: Queue[sys._OptExcInfo | None]  # undocumented
+    _queue: Queue[OptExcInfo | None]  # undocumented
     daemon: bool
     def __init__(self, suppress: bool = False, **kwargs: Callable[..., bool | None] | None) -> None: ...
     @property