[Misc] Revert compressed-tensors code reuse

[kylesayrs]

This PR reverts #7277, specifically commit 373538f.

This addresses an incompatibility between the nvcr.io/nvidia/pytorch:24.05-py3 docker container and compressed-tensors's accelerate dependency. #7277 will be readded once accelerate is moved to an optional dependency in a future compressed-tensors release.

FIX #7516

[github-actions]

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[kylesayrs]

/ready

[kylesayrs]

Tests are failing because of torch.OutOfMemoryErrors

[mgoin]

There are also seemingly tokenizer issues now https://buildkite.com/vllm/ci-aws/builds/6845#01915175-06f3-4ca9-b597-637d6e4dd026/193-731

[kylesayrs]

These are failing on main as well as of commit d3d9cb6
https://buildkite.com/vllm/ci-aws/builds/6826#01914fe8-fa2b-4c9a-ab41-7945e2ae82dd