An airbag weighs 10 lbs max, usually 5-8 lbs. Anybody who removes this for "performance" or "fuel savings" is a blithering idiot who should not be allowed near a motor vehicle.
I'm not sure I buy your 10# claim, but even if that's accurate there are six of them in a modern sedan and that's not a trivial amount of weight for a car.
What? Seriously? Why don't they strip out the seat belts and headrests while they are at it. In fact, they should strip everything out, so the car is rally-style: nothing but seats, steering wheel and gear stick inside. They would get absolutely AWESOME milage then. Fuck the safety then, eh?