Revert "merge patch from launchpad...

Revert "merge patch from launchpad https://launchpadlibrarian.net/491689941/ubuntu-release-upgrader_1%3A20.04.23_1%3A20.04.24.diff.gz"

Even in 2020 the way to import ubuntu changes that are not in git is to apply them to a separate branch and then !ff merge that

This reverts commit 10ba76fe.