[Deprecation]: Remove legacy input mapper/processor from V0

[DarkLight1337]

Anything you want to discuss about vllm on ascend.

Apply vllm-project/vllm#15686 to the model runner.

These methods should not be used anymore:

MultiModalRegistry.has_processor
MultiModalRegistry.create_input_mapper
MultiModalRegistry.init_mm_limits_per_prompt

I plan to remove those methods from upstream by v0.10.0

[wangxiyuan]

Thanks @DarkLight1337 it's really useful info. We'll remove them following your PR！

[Yikun]

@DarkLight1337 Thanks for notification! This is a very important reminder for us.

[Yikun]

Closed by: #951