add torch.no_grad when in eval mode
Author: JunnYu
Pull request: yes

# What does this PR do?

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Fixes (https://github.com/huggingface/transformers/issues/17019)

add `torch.no_grad` in some `run_xxx_no_trainer.py` file when in eval mode

## Before submitting
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## Who can review?

@sgugger
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