Users not being deleted

Ok i have a ejabberd install on a system. Before hand we are using a domain lets says domain1.com i registered my nick woody@domain1.com, after which we decided to use domain2.com which I registered woody@domain2.com. Afterwards I found out that woody@domain1.com still exists and I cant even remove it. Is there any way to remove this old crap users? Do I need to have special command or special treatment for me to delete this oldies?

Thanks