fix: liger unnecessarily materializes logits in VRAM during eval, causing OOM
Author: excepshenal
Pull request: yes

# What does this PR do?

Liger kernel unnecessarily materializes logits in VRAM during eval with `prediction_loss_only=True`, causing OOM. We explicitly tell Liger to `skip_logits`.

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Comments:
View the CircleCI Test Summary for this PR:

https://huggingface.co/spaces/transformers-community/circle-ci-viz?pr=45273&sha=480240

cc @sunmarc but not sure trainer is the place for this?

I think we can add it, there were another PR that also wanted to have this. https://github.com/huggingface/transformers/pull/44981. I'll probably merge the other one as it was there before 

is there any intention to merge this PR?  or [44981](https://github.com/huggingface/transformers/pull/44981)?  i've been maintaining a patched version of transformers using liger on dozens of models and haven't had any problems.  would be better to stop maintaining that patch and use the official version directly, though.