fix: title generation issue

backend/open_webui/routers/openai.py

@@ -613,9 +613,8 @@ async def generate_chat_completion(
             payload["max_tokens"] = payload["max_completion_tokens"]
             del payload["max_completion_tokens"]
 
-    # TODO: check if below is needed
-    # if "max_tokens" in payload and "max_completion_tokens" in payload:
-    #     del payload["max_tokens"]
+    if "max_tokens" in payload and "max_completion_tokens" in payload:
+        del payload["max_tokens"]
 
     # Convert the modified body back to JSON
     payload = json.dumps(payload)