To get the bars off, you need to remove the front two bolts which hold the tips of the U-clips, and also the four bolts (screws really since they fit into threaded holes) which hold the clamp over the rubbers. No need to interfere with the forks at all because the bars are behind the centre nut.
Putting the top clip back on is much more of a problem. The rubbers can be cut to go on round the bars, but they are rather fat and it's not easy to get the top bolts started. I used a G-cramp, but that's a big risk if you are proud of the paintwork.