e31672cc42
This was necessary after mutter configured a non-root user for the image, although as it turned out not sufficient. The latest image no longer sets up a special user, so building the toolbox image should work again as before. This reverts commit ee384d85dac1b0582613bea9263424c9c197839e. Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2813>