code: @Indexable(type = IndexableType.DELETE)
  	@Override
  	public CPInstance deleteCPInstance(CPInstance cpInstance)
  		throws PortalException {
  		return cpInstancePersistence.remove(cpInstance);
  	}
docs: Deletes the cp instance from the database. Also notifies the appropriate model listeners.
  
  @param cpInstance the cp instance
  @return the cp instance that was removed
  @throws PortalException