I'd leave them on personally. Removing them is easy, and can be done with hand tools. A hacksaw, and then shape with a bastard file, smooth with medium file, fine finish with a fine file drawn sideways over the material, then wet sandblock with 240, 400, 800 and 1200 grit paper. A final hard polish using a piece of wood wrapped in soft cloth and autosol will see a mirror smooth shiny finish.
A grinder will generate a lot of heat, which, depending upon the material, could harden, soften or otherwise change the properties of the metal. Neither scenario is good, as either way can drastically improve the chances of an unexpected faceplant when it fails. Keep it cool
If its steel you'll need to think about rust protection for the cut surface. Theres little point going to all that trouble and then letting it rust. Re chroming is the best option, but a 2 pack laquer might work. Difficult though with no surface to key it to.