Remove Welcome Screen persistent settings hack
Once we have #11529 (closed), we can remove a hack from the Welcome Screen code base:
git grep 11529 -- config/chroot_local-includes/usr/lib/python3/dist-packages/tailsgreeter/
Once we have #11529 (closed), we can remove a hack from the Welcome Screen code base:
git grep 11529 -- config/chroot_local-includes/usr/lib/python3/dist-packages/tailsgreeter/