9c7eafc8c3
Currently, we would only disable a11y if a certain flag is passed but the function is always called with NONE flag. Instead drop the flag, use a new environment variable for that That value is then used by actors to short-circuit get_accessible implementation and return NULL if the accessibility is not enabled Also clean the other accessibility functions Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3917>