Remove quality indicator from synthesis display

gradio_callbacks.py

@@ -330,13 +330,7 @@ class GradioCallbacks:
                 return "No relevant studies found. Try a broader query.", "", ""
             
             # Format the successful response
-            quality_indicator = {
-                'high': '🟢 High Quality',
-                'moderate': '🟡 Moderate Quality', 
-                'low': '🔴 Low Quality'
-            }.get(result['quality'], '')
-            
-            answer = f"## 🔍 Research Synthesis {quality_indicator}\n\n{result['answer']}"
+            answer = f"## 🔍 Research Synthesis\n\n{result['answer']}"
             
             references = f"## 📚 References\n\n{result['references']}"