Remove version_info branch

Author: srittau

stdlib/asyncio/queues.pyi

@@ -4,10 +4,7 @@ from asyncio.events import AbstractEventLoop
 from types import GenericAlias
 from typing import Any, Generic, TypeVar
 
-if sys.version_info >= (3, 10):
-    from .mixins import _LoopBoundMixin
-else:
-    _LoopBoundMixin = object
+from .mixins import _LoopBoundMixin
 
 class QueueEmpty(Exception): ...
 class QueueFull(Exception): ...