Update app.py

app.py

@@ -189,7 +189,7 @@ def create_agent():
     image_generator = ToolRegistry.load_image_generation_tools()
 
     # Combine all tools into a single list (not a tuple)
-    all_tools = [visualizer] + web_tools + [gemma_vision_tool] + [image_generator]
+    all_tools = [visualizer] + web_tools + [image_generator]
 
     # Validate tools before creating agent
     for tool in all_tools: