Removing some of those servos, make a person feel like some kind of surgeon.
If it were me, I would probably just cut the fuse in half as close to the servo as I could, because the right glue for the type of foam will be just as strong as it started out to be.
The servos do seem to be installed with a caulking type material, you may be able to cut out by cutting a tiny amount of foam, removing servo and glue at the same time.
If you need a small shim to fill a little larger servo hole use balsa or a piece of Popsicle stick or any thing else the glue will stick to.
Good luck, be careful with the knife, don't cut your self as I have done in the past.