RouteUI::set_route() already does the right thing. Also remove RouteUI::mute_changed() since its only role was to handle the mute change signal from a route, which boost::bind() makes unnecessary since we can connect update_mute_display() directly.
RouteUI::set_route() already does the right thing. Also remove RouteUI::mute_changed() since its only role was to handle the mute change signal from a route, which boost::bind() makes unnecessary since we can connect update_mute_display() directly.