Replace previous auto-start script if it contains '/usr/games/steam'

overlay/etc/home_directory_template/.config/autostart/Steam.desktop

@@ -1,13 +0,0 @@
-[Desktop Entry]
-Encoding=UTF-8
-Version=0.9.4
-Type=Application
-Name=Steam
-Comment=launch steam on login
-Exec=/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=/app/bin/steam-wrapper --file-forwarding com.valvesoftware.Steam @@u %U @@ -silent
-Icon=steam
-OnlyShowIn=XFCE;
-RunHook=0
-StartupNotify=false
-Terminal=false
-Hidden=false