@Override
	public void unlink() {
		JitDefOp.super.unlink();
		for (JitVal input : options.values()) {
			input.removeUse(this, 0);
		}
	}
Add the {@link JitInputVar input} option, if not already present
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/emu/jit/op/JitPhiOp.java