Yup. This now the plan. The rear suspension setup is preferable on the quattro, it's all gota come out by the 29thMay and be finishedBack to the original question.
As stated, you can remove Haldex, and nothing will light up. Haldex is a "listen only" module, it doesn't talk to other modules.
You could make it more predictable with aftermarket bits, but that's it.
For track only, it might be preferable to have it deleted, but keep rear suspension of quattro, as it allows you adjustment for rear axle. It could also open up some classes to compete in, as most classes don't allow 4WD..
For rear axle you need to keep your driveshaft outer stub bolted to hub, as that ties up wheel bearing, but that is all you need to keep from driveshafts.