I've run into this problem in my amateur mechanicalizing a few times and have just run into it again. When I remove the suicide levers from an old pair of brakes and reattach everything, there is an annoying amount of "play" in the remaining lever. This is due to the space on the little bolt going through the brake previously taken up by the suicide lever being vacant. Is there any way to combat this? I suppose a washer would work, but I don't have one in the right size.