BUILD: configure.ac: remove unused variables
BUILD: configure.ac: remove unused variables

GNOME/beast,swesterfeld/beast,tim-janik/beast,GNOME/beast,tim-janik/beast,swesterfeld/beast,tim-janik/beast,tim-janik/beast,tim-janik/beast,tim-janik/beast,tim-janik/beast,swesterfeld/beast,GNOME/beast,GNOME/beast,GNOME/beast,GNOME/beast,swesterfeld/beast,swesterfeld/beast,swesterfeld/beast,swesterfeld/beast,GNOME/beast