[Refactor] Remove unused ModelWorker.get_worker_info

[kevin85421]

OmniScheduler reads these fields directly from tp_worker.model_runner / server_args, so the method is dead code. Update the now-stale comment in omni_scheduler.py that referenced it.

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[JingwenGu0829]

Thanks! That's what I forgot to delete when I realized the TP implementation deviates from the original design.

Please feel free to raise any further related issue around the TP design (It's not actively used in current models and there's changes half-way in design when TP is being implemented so there could be some issues and dead code.)

[kevin85421]

Thanks! I've recently been reading the source code to learn more about SGLang Omni. I'll open some refactor PRs if I find any issues as I go through the codebase.