that is not the way to do that, we have a doc on that:
Removing a Subscriber Server from Cisco CallManager (Revised 07/25/2005)
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/4_1_3/ccmcfg/b09remsr.html
the main issue is that if you did not deleted all the dependencies and stopped the services before getting the server out from the network the PUN thinks that the server might be temporarily offline
the best way would be to plug it back again and follow the proper procedure to avoid further issues.
if it's not possible the only way would be to delete the entries directly from the DB which is not the right way to do this
HTH
javalenc
if this helps, please rate
HTH
java
if this helps, please rate