Considering the fact that if you max out to the stop the tire will likely travel upward about 4-5", my guess is it'd be safest to leave it alone. Some others may chime in that may have altered or removed, but with the risk of damaging steering components or CV joints, the most I'd do is possibly shave it down to gain more clearance.
If you'd be willing to, I'd park a front tire on a rock or something to max it out on the stop as it stands, then assess clearances all around and see if it'd even benefit you to alter the stop at all without wheelwell clearance issues. Good luck, and remember your CV angles are a necessary consideration and cannot be ignored.
