Python 3.11 removals in stdlib (#6374)

Co-authored-by: Akuli <akuviljanen17@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

stdlib/_tkinter.pyi

@@ -1,3 +1,4 @@
+import sys
 from typing import Any
 from typing_extensions import Literal, final
 
@@ -68,7 +69,8 @@ class TkappType:
     quit: Any
     record: Any
     setvar: Any
-    split: Any
+    if sys.version_info < (3, 11):
+        split: Any
     splitlist: Any
     unsetvar: Any
     wantobjects: Any