[Frontend] Add GPU-less render serving path (vllm launch render) (#36166)

vllm/entrypoints/openai/chat_completion/api_router.py

@@ -71,34 +71,5 @@ async def create_chat_completion(request: ChatCompletionRequest, raw_request: Re
     return StreamingResponse(content=generator, media_type="text/event-stream")
 
 
-@router.post(
-    "/v1/chat/completions/render",
-    dependencies=[Depends(validate_json_request)],
-    response_model=list,
-    responses={
-        HTTPStatus.BAD_REQUEST.value: {"model": ErrorResponse},
-        HTTPStatus.NOT_FOUND.value: {"model": ErrorResponse},
-        HTTPStatus.INTERNAL_SERVER_ERROR.value: {"model": ErrorResponse},
-        HTTPStatus.NOT_IMPLEMENTED.value: {"model": ErrorResponse},
-    },
-)
-async def render_chat_completion(request: ChatCompletionRequest, raw_request: Request):
-    """Render chat completion request and return conversation and engine
-    prompts without generating."""
-    handler = chat(raw_request)
-    if handler is None:
-        base_server = raw_request.app.state.openai_serving_tokenization
-        return base_server.create_error_response(
-            message="The model does not support Chat Completions API"
-        )
-
-    result = await handler.render_chat_request(request)
-
-    if isinstance(result, ErrorResponse):
-        return JSONResponse(content=result.model_dump(), status_code=result.error.code)
-
-    return JSONResponse(content=result)
-
-
 def attach_router(app: FastAPI):
     app.include_router(router)