@Override
	public void removeProperty(String name) {
		PropertyMapManager upm = codeMgr.getPropertyMapManager();
		PropertyMap<?> pm = upm.getPropertyMap(name);
		if (pm != null) {
			try {
				validate(lock);
				pm.remove(address);
			}
			catch (ConcurrentModificationException e) {
				// ignore
			}
		}
	}
@see ghidra.program.model.listing.CodeUnit#addOperandReference(int,
     ghidra.program.model.address.Address,
     ghidra.program.model.symbol.RefType, SourceType)
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/code/CodeUnitDB.java