Group policy to delete inactive users accounts and computer accounts

Hi Forum users,

I have a client request asking specifically for a group policy to delete inactive computer accounts and user accounts, but I couldn't find any policy related to this. I found a old thread 'http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/88808b2d-472a-457a-829c-66359b875550" but it too doesn't mention about any policy other than dsquery, please advice.