移除win32.py中的anyio导入

Author: jingx8885

src/mcp/client/stdio/win32.py

@@ -8,7 +8,6 @@
 from pathlib import Path
 from typing import BinaryIO, TextIO, cast
 
-import anyio
 import psutil
 from anyio import to_thread
 from anyio.abc import Process