fix tutorial 40 for Gradio 6.0.0 (#417)

Author: anakin87

tutorials/40_Building_Chat_Application_with_Function_Calling.ipynb

@@ -782,15 +782,13 @@
     "\n",
     "demo = gr.ChatInterface(\n",
     "    fn=chatbot_with_tc,\n",
-    "    type=\"messages\",\n",
     "    examples=[\n",
     "        \"Can you tell me where Giorgio lives?\",\n",
     "        \"What's the weather like in Madrid?\",\n",
     "        \"Who lives in London?\",\n",
     "        \"What's the weather like where Mark lives?\",\n",
     "    ],\n",
     "    title=\"Ask me about weather or where people live!\",\n",
-    "    theme=gr.themes.Ocean(),\n",
     ")\n",
     "\n",
     "## Uncomment the line below to launch the chat app with UI\n",
@@ -840,4 +838,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}