Have you seen a car lately? Whist I'm sure it could be taken out (leaving a raggedy, jagged, odd-shaped hole in the dash...) you'd lose half the functionality of the car with it. These aren't the single or even 1.5 DIN chassis of yesteryear, and I doubt Crutchfield has a conversion kit that's going to replace the dash elements, backup camera, steering wheel controls, climate control, vehicle information center, and, for some bizzarro-world reason, the instrument cluster setup options.
I really can't stand the modern "everything's gotta have a big-ass tablet interface with no tactile landmarks. Particularly when I'm hurtling down a narrow corridor in a 1.5 ton metal box and trying to avoid hundreds of other idiots doing the same.