OSIsoft PI-SMT Interface Node List Cleanup

In one of our PI system, i noticed there's an entry from HIS-0161 which is not supposed to be. Cleanup time... Just go to PI-SMT > Operation > Module Database and browse through the Interfaces entries.. right click and delete... The contractor who commissioned the system must have attempted to register OPC Interface from HIS-0161 and then decided to use another machine "GDC-PI-NODE-01" but then forgot or not properly "unregister" the OPC Interface using PI-ICU..