public void removeDomainObjectListener() {
		DomainObjectListener listingModel = (DomainObjectListener) multiModel.getModel(0);
		latestProgram.removeListener(listingModel);
	}
Remove the latest program's listing model as a listener to the latest program
for domain object events.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/listing/ExternalAddConflictPanel.java