[2/2] Support deterministic inference for temperature > 0 (#10678)

Co-authored-by: Baizhou Zhang <sobereddiezhang@gmail.com>
Co-authored-by: hebiao064 <hebiaobuaa@gmail.com>

sgl-router/src/routers/http/openai_router.rs

@@ -240,6 +240,7 @@ impl super::super::RouterTrait for OpenAIRouter {
                 "chat_template_kwargs",
                 "return_hidden_states",
                 "repetition_penalty",
+                "sampling_seed",
             ] {
                 obj.remove(key);
             }