[Feature] Reuse JIT code path for building AOT wheel

[abcdabcd987]

Currently we maintain AOT csrc and JIT csrc separately. Since JIT is the priority and AOT is tested less often, AOT falls out of sync with JIT from time to time. This causes lots of issues (e.g., compilation failure, linking failure, missing symbols at runtime, falling back to JIT) and duplicated work must be paid to bring the changes to AOT. This is clearly not sustainable.

On the other hand, we do want to have a wheel that have some common kernels precompiled.

My proposal is: Get rid of AOT csrc. Use JIT code path to generate and compile kernels during wheel build time.