- Merge the whole /etc/alsa/pcm/pulseaudio.conf stuff into
        /etc/alsa/pulse-default.conf, because the former is practically always
        ignored, since it is not referenced for inclusion by any other
        configuration file fragment (#251943) The other fragments installed in
        /etc/alsa/pcm/ are useless, too. But since we are in a freeze and they
        are not that important, I am not fixing this now.