[Misc] Reduce LoRA-related static variable

[jeejeelee]

Motivation

Remove LoRA-related static variable supported_lora_modules, which not only makes our model implementation cleaner but also enables smoother LoRA support

Work

• [ ] Delete all models supported_lora_modules
• [ ] Add unit test

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[mergify[bot]]

This pull request has merge conflicts that must be resolved before it can be merged. Please rebase the PR, @jeejeelee.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

[jeejeelee]

@DarkLight1337 Do you know what's causing the current CI failures?

[Isotr0py]

There were some issues in HF's opt repo yesterday, which should have been fixed. I think re-run these CIs should be just fine?