updated evaluation logic

main.py

@@ -944,9 +944,6 @@ async def action_evaluate(payload: Dict[str, Any]) -> Dict[str, Any]:
         contents = payload.get("contents", [])
         response = payload.get("response", "")
         metrics = payload.get("metrics", [])
-
-        state = SESSION_STORE
-        evaluator = state["evaluator"]
         result = await state["evaluator"].evaluate_response(query, response, contents, include_metrics=metrics)
         
         return {"result": result}