core: Remove gconf stuff from configure.ac
core: Remove gconf stuff from configure.ac

Pelagicore/Media-Manager-Rygel-patched,jku/rygel,GNOME/rygel,GNOME/rygel,GNOME/rygel,Pelagicore/Media-Manager-Rygel-patched,Tarnyko/rygel,Tarnyko/rygel,luisbg/rygel,jku/rygel,Pelagicore/Media-Manager-Rygel-patched