Remove lib comparison

[wcandillon]

I do not believe this gives a good/honest overview of the 3d space in React Native. We could think about improving this section but it might just be easier to remove it.

[hannojg]

What is the current status with:

• https://github.com/wcandillon/react-native-webgpu

? Is it already ready to be used? I think this should be added to the comparison here, sure

[wcandillon]

RN WebGPU is a lower-level cross platform GPU API so the positioning with RN Filament is clear.
But now we run threejs/three-fiber out of the box (model loading, leveraging existing ecosystem, etc) and we also support worklet thread and non mobile platforms (macOS, vision pro). So the comparison stuff is a rabbit hole that might not be helpful to do.