[BUG] We may need to remove max_memory arg

[Qubitium]

For very large models, multiple GPU may be needed for quantization but max_memory arg appears to be broken. Everything should be handled by accelerate and there should be no need for this arg. Investigate.

delete max_memory=max_memory can run.

Originally posted by @Xu-Chen in #48 (comment)

[Qubitium]

We will remove this. Advanced users should just use and pass device_map fo accelerate. We should not be a arg modifying proxy for acclerate. Passing accelerate config args to accelerate is cleaner, more powerful, and we dont have to maintain compat.