private void processDataTypesDeleted() throws CancelledException {
		for (Long element : myDtChangeList) {
			currentMonitor.checkCancelled();

			long id = element.longValue();
			processDataTypeDeleted(id);
		}
	}
Handle conflicts on a category that was deleted in one program, and
renamed or moved in another program.
@param id category ID
@throws CancelledException if operation is cancelled
Ghidra/Features/Base/src/main/java/ghidra/app/merge/datatypes/DataTypeMergeManager.java