Remove package.mask, all entries are outdated
tree496bff8c9122bceafc81f49575e839d329d6a241
drwxr-xr-x - dev-python
drwxr-xr-x - dev-ruby
drwxr-xr-x - eclass
drwxr-xr-x - media-libs
drwxr-xr-x - media-plugins
drwxr-xr-x - media-sound
drwxr-xr-x - metadata
-rw-r--r-- 653 mpd.xml
drwxr-xr-x - profiles
drwxr-xr-x - www-apps
drwxr-xr-x - x11-plugins