Signed-off-by: Guido Günther <agx@sigxcpu.org> Part-of: <https://gitlab.gnome.org/GNOME/calls/-/merge_requests/756>
The macros was emulating g_clear_handle_id() and friends let's use the glib functions directly instead. Part-of: <https://gitlab.gnome.org/GNOME/calls/-/merge_requests/755>
"util" is a very generic name. This guards against accidentally including similarly named headers from elsewhere.