fixed stubtest

Author: randolf-scholz

stdlib/multiprocessing/managers.pyi

@@ -114,8 +114,6 @@ else:
         @overload
         def pop(self, key: _KT, /) -> _VT: ...
         @overload
-        def pop(self, key: _KT, default: _VT, /) -> _VT: ...
-        @overload
         def pop(self, key: _KT, default: _T, /) -> _VT | _T: ...
         def keys(self) -> list[_KT]: ...  # type: ignore[override]
         def items(self) -> list[tuple[_KT, _VT]]: ...  # type: ignore[override]