MarsSeed [1] filed a deletion request for lib32-libnice [2]: Fails to build since 9 months ago, as reported in an AUR comment.
But this library is no longer used by any other package (lib32-gstreamer plugin pkgs have dropped this dependency). Therefore it is safe to delete. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lib32-libnice/
