Is it safe to remove "lawyer tabs" on a carbon fork?
Depends on the fork and the brake type used. With disc brakes, don't do it.  A disc can generate enough force to pull a wheel.  That's why most, if not all new MTB forks come with a burly, deep recess for the QR and the dropouts face forward. With the caliper on the back of the leg, it wants to drive the hub downward when the brakes are on.  If the dropout is closer to horizontal, then it pushes the hub axle into the fork instead of out of the dropout.  It's another reason why fork manufacturers are switching to thru axle forks.  Stiffer, yes, but also less chance of a lawsuit.

On road and cross forks, you are probably okay, especially if the "lawyer lips" are tiny. A couple of little bumps missing aren't going to do much.  If the fork has a recessed area for the QR molded into the dropout, then the effort needed to remove them is going to suck and you might affect the integrity of the dropout.  Of course, you will void the warranty.

Something to think about.  Pro teams file them off and there are no reports of riders crashing because the wheel came out.  Of course, all of the equipment is top shelf stuff, maintained by some of the world's best mechanics, and gets replaced instantly if there is a hint of an issue.  Also, no Pro is on any fork older than a year, if that.  Most likely, the bike they race on is less than 6 months old.