Drop obsolete liquidsoap-plugin dependencies

debian/control

@@ -8,8 +8,7 @@ Homepage: https://git.autistici.org/ale/autoradio
 
 Package: autoradio-server
 Architecture: any
-Depends: icecast2, liquidsoap, liquidsoap-plugin-lame, liquidsoap-plugin-icecast,
- liquidsoap-plugin-mad, liquidsoap-plugin-vorbis, libcap2-bin, sudo,
+Depends: icecast2, liquidsoap, libcap2-bin, sudo,
  ${shlibs:Depends}, ${misc:Depends}
 Description: Icecast clustering software.
  Runs icecast2 in a cluster controlled by etcd.