public void removeDomainObjectListener() {
		DomainObjectListener listingModel = (DomainObjectListener) multiModel.getModel(RESULT);
		programs[RESULT].removeListener(listingModel);
	}
Remove the result program's listing model as a listener to the result program for domain
object events.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/tool/ListingMergePanel.java