Remove extra tensor clone in PyTorch code
Author: cyyever
Pull request: yes

# What does this PR do?
Eliminate some clone calls in PyTorch code. 
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Models:

- text models: @ArthurZucker
- vision models: @amyeroberts, @qubvel
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Library:

- flax: @gante and @Rocketknight1
- generate: @zucchini-nlp (visual-language models) or @gante (all others)
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- accelerate: [different repo](https://github.com/huggingface/accelerate)
- datasets: [different repo](https://github.com/huggingface/datasets)
- diffusers: [different repo](https://github.com/huggingface/diffusers)
- rust tokenizers: [different repo](https://github.com/huggingface/tokenizers)

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Comments:
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@Rocketknight1 Conflict resolved.

It should be safe to land. TorchFix should be used in linting after that.

Yes, happy with this now, so merging!

btw @cyyever I think torchfix is still beta so I don't know if we can use it as a linter, but please feel free to run it on the codebase in future and open a PR with the changes!