Update models.js

models.js

@@ -174,13 +174,7 @@ const GptModelOld = (prompt) => ({
     prompt: prompt,
     top_p: 1,
     logprobs: null,
-    stop: null,
-    messages: [
-      {
-        role: "system",
-        content: SYSTEMSUNDA
-      }
-    ]
+    stop: null
 });
 
 export { GptModelOld, ApiKey };