Aaron: "Remove" might be the wrong word. More like "permanently disengage". They no longer rattle around and move freely between settings…but they still have the extra weight of the spring mechanism, etc.
On the Lekis, the anti-shock mechanism works as follows: There's a metal cylinder that protrudes from the interior of the pole. It's represented by the red dot in the picture below. It's held by a plastic "sheath" with sort of a T-shaped "runner" which guides the cylinder.
Well, 180 degrees from the vertical portion of the runner, there is a cylindrical hole in the sheath. With a little work, you can move that metal cylinder out of the runner, and get it into the cylindrical hole. Once in the hole, the cylinder can't move, and thus the pole is permanently in "deactivated" mode.

I used a flat head screwdriver, a small pair of vise grip pliers, and a clamp/vise to hold the pole. I've done this on 2 pairs of Lekis. It was easier on the smaller diameter "Ultralite" series than it was on the more robust "Super Makalu". Appears to work equally well on both styles, though. I've put about 600 miles on the Super Makalus since making the change, and I haven't had an issues in that time.