Switch from timed to automatic login in desktop spin

Now that GDM no longer has language selection, there's
little reason to use timed login.

This commit changes the default config to use automatic
login instead.

fedora-live-desktop.ks

@@ -28,9 +28,8 @@ gconftool-2 --direct --config-source=xml:readwrite:/etc/gconf/gconf.xml.defaults
 # set up timed auto-login for after 60 seconds
 cat >> /etc/gdm/custom.conf << FOE
 [daemon]
-TimedLoginEnable=true
-TimedLogin=liveuser
-TimedLoginDelay=60
+AutomaticLoginEnable=true
+AutomaticLogin=liveuser
 FOE
 
 # Show harddisk install on the desktop