FastLanguageModel.from_pretrained incorrectly uses revision when loading model_config and is_peft=True

This causes from_pretrained to error out when model_name points to a peft adapter and revision is specified.

I think you can fix this by deleting this one line:
https://github.com/unslothai/unsloth/blob/8d7662e49e0102559ba63ecb06e47325148cb33e/unsloth/models/loader.py#L205