revert: remove adapters / intrinsics / alora / lora from openai code

[jakelorocco]

Misc PR

Type of PR

• Bug Fix
• New Feature
• Documentation
• Other

Description

• Link to Issue: N/A- Request to remove alora support from openai backend for vllm servers since vllm will not support it anymore.

Currently removed all adapter based code; will confirm if that's the intent or if we should just remove support for activate loras while still allowing for lora adapters. Consensus was to just remove all support and keep huggingface as the backend that supports adapters/aloras/intrinsics. The logic for this is that the vllm implementation that will eventually support aloras / intrinsics / arbitrary adapters will likely be a much different implementation. As a result, we are removing this code.

Testing

• Tests added to the respective file if code was changed
• New code has 100% coverage if code as added
• Ensure existing tests and github automation passes (a maintainer will kick off the github automation when the rest of the PR is populated)

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[jakelorocco]

Note: while reverting these changes, I found an issue with using format in generate_from_raw requests. Newer vllm server version expect different parameter structures. I added some code to try to find the vllm version and then use that version in the request. Added tests to test the underlying function. We don't have a great way to test different vllm server versions, but I tested older and newer versions manually. Both worked.

[jakelorocco]

@guicho271828, could you please review this when you get a chance. Thanks!

[nrfulton]

@guicho271828 context: the vLLM aLoRA PR will not accepted, so the alora/intrinsics code for openai is now all dead code.

[guicho271828]

rewrote the tests; test pass. Since there is no need for using the forked vllm, it now simply launches a child vllm process.