Coming from someone who always wants to do small doctoring stuff like this to make stuff better, especially for ski gear...
I definitely wouldn’t do this. Your ski will slide further down the hill if you fall. And the fact that you will have a dedicated ski for each foot will crack you edges underfoot a lot easier. It’ll chip a lot easier too. It’s just better to mix it up. It’s like rotating tires on a car... if you don’t do it then it’ll wear out the prone section to wear a lot worse. But if you mean cutting off all brakes completely then idk what your thinking cause that’s a real dumb thing to do. You can just bend the brakes in more. But if your hellbent on cutting them for whatever odd reason, i would do it to all 4 brake rods. And cover up the edges with a bunch of duck tape or something so it’s not sharp, and it won’t stab someone lol