As those strings are intended to be used by some UI but nothing uses that in reality except GStreamer. So drop them similar to what GTK did at https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/4717 Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3101>
Add a new interface for allowing or denying shortcuts inhibit requests. https://bugzilla.gnome.org/show_bug.cgi?id=783342