[Bug 34510] there should be no screensaver on the liveCD

[Jeff Fortin]

Public bug reported:
https://launchpad.net/malone/bugs/34510

Affects: gnome-screensaver (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
The new liveCD allows installing directly from it, and should absolutely
not have screensavers during that process. It is unpredictable,
ressource-hungry, and the user did not ask for them.