Get rid of GNOME Flashback, Metacity and friends
At least these packages could probably be removed from the ISO, thanks to the new Greeter:
gnome-flashback-common gnome-menus gnome-panel gnome-panel-data
libpanel-applet0 gnome-flashback gnome-session-flashback
metacity metacity-common
Feature Branch: feature/8230-greeter-revamp-phase1
Parent Task: #8230 (closed)
Original created by @intrigeri on 12064 (Redmine)