Removed imported symbols that are not accessed or re-exported (#4387)

Co-authored-by: Eric Traut <erictr@microsoft.com>

stdlib/2and3/logging/handlers.pyi

@@ -4,7 +4,7 @@ import sys
 from _typeshed import StrPath
 from logging import FileHandler, Handler, LogRecord
 from socket import SocketType
-from typing import Any, Callable, Dict, List, Optional, Tuple, Union, overload
+from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
 if sys.version_info >= (3, 7):
     from queue import Queue, SimpleQueue