private void clearAllPropertiesForAddressRange(PropertyMap<?> propertyMap,
			AddressSetView addresses) {
		AddressIterator iterator = addresses.getAddresses(true);
		for (; iterator.hasNext();) {
			Address address = iterator.next();
			propertyMap.remove(address);
		}
	}
Note: this method does not clear group vertex locations.
@param functionGraph function graph
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/mvc/FunctionGraphVertexAttributes.java