Remove already recommended packages by liquidsoap

Many packages are already in the recommends list
of the liquidsoap package or from the
plugin packages (only bionic), so we don't need to
install them manually.

installer/apt/requirements-debian-buster.apt

@@ -10,22 +10,11 @@ gstreamer1.0-plugins-good
 gstreamer1.0-plugins-ugly
 icecast2
 lame
-libao-ocaml
 libapache2-mod-php7.3
 libcairo2-dev
-libcamomile-ocaml-data
-libfaad2
 libgirepository1.0-dev
 libglib2.0-dev
-libmad-ocaml
-libopus0
-libportaudio2
 libpq-dev
-libpulse0
-libsamplerate0
-libsoundtouch-ocaml
-libtaglib-ocaml
-libvo-aacenc0
 liquidsoap
 lsb-release
 lsof
@@ -59,7 +48,5 @@ systemd-sysv
 unzip
 uwsgi
 uwsgi-plugin-python3
-vorbis-tools
-vorbisgain
 xmlstarlet
 zip

installer/apt/requirements-ubuntu-bionic.apt

@@ -11,37 +11,17 @@ gstreamer1.0-plugins-good
 gstreamer1.0-plugins-ugly
 icecast2
 lame
-libao-ocaml
 libapache2-mod-php7.2
 libcairo2-dev
-libcamomile-ocaml-data
-libfaad2
 libffi-dev
 libgirepository1.0-dev
 libglib2.0-dev
-libmad-ocaml
-libopus0
-libportaudio2
-libpq-dev
-libpulse0
-libsamplerate0
-libsoundtouch-ocaml
 libssl-dev
-libtaglib-ocaml
 liquidsoap
 liquidsoap-plugin-alsa
 liquidsoap-plugin-ao
-liquidsoap-plugin-faad
-liquidsoap-plugin-flac
-liquidsoap-plugin-icecast
-liquidsoap-plugin-lame
-liquidsoap-plugin-mad
 liquidsoap-plugin-ogg
 liquidsoap-plugin-portaudio
-liquidsoap-plugin-pulseaudio
-liquidsoap-plugin-taglib
-liquidsoap-plugin-voaacenc
-liquidsoap-plugin-vorbis
 lsb-release
 lsof
 mpg123
@@ -72,7 +52,5 @@ sysvinit-utils
 unzip
 uwsgi
 uwsgi-plugin-python3
-vorbis-tools
-vorbisgain
 xmlstarlet
 zip