建议移除psutil

请把考虑1.3.1引入的psutil模块移出过做出替换，原因是psutil不具备安卓框架，只适用windows，Linux等平台，无法做到正真的跨平台。使用p4a打包apk的时候导致app运行崩溃

Start by locating the psutil imports and usages introduced around version 1.3.1, then reproduce the crash when packaging an APK with p4a. Identify a cross-platform replacement or removal path, and verify that the packaged Android app runs without the psutil-related crash while existing supported platforms remain functional.

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