The alsaproject mirror does not list more than one server since 2017.
Inline it in packages and remove.
Closes: https://bugs.gentoo.org/694510
Closes: https://github.com/gentoo/gentoo/pull/12934
Signed-off-by: Michał Górny <mgorny@gentoo.org>
-alsaproject ftp://ftp.alsa-project.org/pub
apache http://apache.lauf-forum.at/ http://apache.mirror.digionline.de/ http://apache.mirror.iphh.net/ https://artfiles.org/apache.org/ https://ftp-stud.hs-esslingen.de/pub/Mirrors/ftp.apache.org/dist/ https://ftp.fau.de/apache/ https://ftp.halifax.rwth-aachen.de/apache/ http://mirror.23media.de/apache/ http://apache.mirrors.hoobly.com/ http://www.gtlib.gatech.edu/pub/apache/ https://apache.osuosl.org/
cpan https://cpan.metacpan.org https://www.cpan.org
cran https://cran.r-project.org https://cran.us.r-project.org