appstream: Don't try to remove old appstream if it doesn't exist
appstream: Don't try to remove old appstream if it doesn't exist

GeorgesStavracas/flatpak,matthiasclasen/xdg-app,GeorgesStavracas/flatpak,alexlarsson/xdg-app,flatpak/flatpak,amigadave/flatpak,handsome-feng/flatpak,GeorgesStavracas/flatpak,GeorgesStavracas/flatpak,amigadave/flatpak,matthiasclasen/xdg-app,matthiasclasen/xdg-app,alexlarsson/xdg-app,handsome-feng/flatpak,flatpak/flatpak,matthiasclasen/flatpak,flatpak/flatpak,GeorgesStavracas/flatpak,handsome-feng/flatpak,amigadave/flatpak,alexlarsson/xdg-app,matthiasclasen/flatpak,matthiasclasen/flatpak,matthiasclasen/xdg-app,matthiasclasen/flatpak,flatpak/flatpak,handsome-feng/flatpak,handsome-feng/flatpak,alexlarsson/xdg-app,flatpak/flatpak,amigadave/flatpak,matthiasclasen/flatpak