Description of problem: Please remove the explicit requirement on gnome-packagekit. Otherwise it will also be pulled onto the KDE Live images besides kpackagekit (and we need the space elsewhere).
This looks like it's not new... setroubleshoot/F-12 branch has this dependency too. Doesn't seem to be any mention of why/how it's used in the .spec. Dan?
This was added on Fri Jan 22 (rev 1.189) http://cvs.fedoraproject.org/viewvc/rpms/setroubleshoot/devel/setroubleshoot.spec?r1=1.189&r2=1.190
It is using gnome-packagekit to figure out what version of selinux policy is installed and whether or not it needs an update. Although it looks like it is no longer used so I can remove. It is now using yum. Fixed in setroubleshoot-2.2.62-1.fc13