[Renderer] Separate out RendererConfig from ModelConfig (#30145)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

vllm/config/multimodal.py

@@ -79,10 +79,6 @@ class MultiModalConfig:
 
     WARNING: The vLLM engine may crash if incorrect shape of embeddings is passed.
     Only enable this flag for trusted users!"""
-    media_io_kwargs: dict[str, dict[str, Any]] = Field(default_factory=dict)
-    """Additional args passed to process media inputs, keyed by modalities.
-    For example, to set num_frames for video, set
-    `--media-io-kwargs '{"video": {"num_frames": 40} }'`"""
     mm_processor_kwargs: dict[str, object] | None = None
     """Arguments to be forwarded to the model's processor for multi-modal data,
     e.g., image processor. Overrides for the multi-modal processor obtained