remove torchao.autoquant from transformers
Author: vkuzo
Pull request: yes

Summary:

This is being deprecated: https://github.com/pytorch/ao/issues/3739

Test Plan:

```python
RUN_SLOW=1 pytest tests/quantization/torchao_integration/test_torchao.py -s
```

# What does this PR do?

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Fixes # (issue)


## Before submitting
- [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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## Who can review?

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Models:

- text models: @ArthurZucker @Cyrilvallez
- vision models: @yonigozlan @molbap
- audio models: @eustlb @ebezzam @vasqu
- multimodal models: @zucchini-nlp
- graph models: @clefourrier

Library:

- generate: @zucchini-nlp (visual-language models) or @gante (all others)
- continuous batching: @remi-or @ArthurZucker @McPatate
- pipelines: @Rocketknight1
- tokenizers: @ArthurZucker and @itazap
- trainer: @SunMarc
- attention: @vasqu @ArthurZucker @CyrilVallez
- model loading (from pretrained, etc): @CyrilVallez
- distributed: @3outeille @ArthurZucker
- CIs: @ydshieh

Integrations:

- ray/raytune: @richardliaw, @amogkam
- Big Model Inference: @SunMarc
- quantization: @SunMarc @MekkCyber
- kernels: @MekkCyber @drbh
- peft: @BenjaminBossan @githubnemo

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- AMD ROCm: @ivarflakstad
- Intel XPU: @IlyasMoutawwakil
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Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_43561). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

plz merge @ArthurZucker 

**[For maintainers]** Suggested jobs to run (before merge)

run-slow: torchao_integration