Code review comment for lp://qastaging/~juliank/ubuntu-release-upgrader/suggests-not-important

The "Remove (was auto installed)" list includes packages I'd seen when using apt autoremove with the setting in effect before the upgrade so it seems like its doing the right thing.

Another involved way to test would be to install zesty, upgrade to artful and then ensure "ubuntu-wallpapers-zesty" was removed.