private void removeMemRefs(Data data) {
		if (data != null) {
			Reference[] refs = data.getValueReferences();
			for (Reference ref : refs) {
				RemoveReferenceCmd cmd = new RemoveReferenceCmd(ref);
				cmd.applyTo(data.getProgram());
			}
		}
	}
Determine if pointerData refers to a valid memory address or symbol
@param pointerData pointer data
@return true if pointer data refers to valid memory address or symbol
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/ElfDefaultGotPltMarkup.java