No offense, but how would you like it if I were to rip your fingernails out without your permission, especially if that was all you had and you depended on them for your survival, or at least your mental wellbeing?
It's not a very pleasant procedure, and it's very painful for the cat for months after the surgery, not to mention what it does to them mentally.
Just clip it's claws monthly and be done with it. If you can't deal with it having claws, give it to someone who can. I just can't stand animals being treated like they are toys for our amusement, without any thought as to the implications to them. If your cat were to sneak outside(considering it's an indoor cat), it would likely get it's ass beat and possibly get killed. They need their claws for various reasons.
Like I said, i'm not trying to put you down, i'm just trying to let you know what declawing does to any animal, especially cats.
I have an iguana that is coming up on five feet, and I clip his claws bi-weekly. It's not that hard as long as your animal is trained well.