This would be great, thank you. A permanent solution is what I am looking for. I already looked into removing stuff from the motherboard a bit, and I must have misunderstood something. The information I found was suggesting that this would likely result in the device not functioning anymore.

I already tried using old hardware that does not come with wifi/bluetooth. The performance was terrible. 5 seconds to open a minimalistic plaintext editor, and I had to use a very simple desktop environment that was almost unusable due to lack of features. I would rather buy something new, with OK performance (and also I like having warranty). I should have made that clearer, sorry. I updated my post.