CmHandles could change their additional properties.

NCMP can be informed of this using the existing (registration) API call on NCMP (#1 in https://wiki.onap.org/display/DW/CPS-390+Spike%3A+Define+and+Agree+DMI+Plugin+REST+Interface#CPS390Spike:DefineandAgreeDMIPluginRESTInterface-DMIInventory,Model&DataSyncAPI) 

 For this user story the payload labeled "removedcmhandles" needs to be implemented. ie. any entries in this need to be updated in the registry

If an entry in "removedcmhandles"  does not exist we can probably silently ignore this

A/C
Update the schema in the yaml file to include an operation to indicate it is a remove operation
Accept an array of cm handles "removedCmHandles" : [ "node-1", "node-2" , ... ]
Add a new method to ncmp service Interface
Call method in the cps java API deleteListNode
Remove cm handle changes in the db