Remove PrefersNonDefaultGPU from linux desktop file

misc/dist/linux/org.godotengine.Godot.desktop

@@ -17,7 +17,6 @@ Comment[zh_CN]=多平台 2D 和 3D 游戏引擎，带有功能丰富的编辑器
 Exec=godot %f
 Icon=godot
 Terminal=false
-PrefersNonDefaultGPU=true
 Type=Application
 MimeType=application/x-godot-project;
 Categories=Development;IDE;