cleanup examples and remove requests library

examples/simple-chatbot/bot.py

@@ -1,3 +1,9 @@
+#
+# Copyright (c) 2024, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+
 import asyncio
 import aiohttp
 import os
@@ -77,7 +83,8 @@ class TalkingAnimation(FrameProcessor):
         await self.push_frame(frame)
 
 
-async def main(room_url: str, token):
+async def main():
+    (room_url, token) = await configure()
     async with aiohttp.ClientSession() as session:
         transport = DailyTransport(
             room_url,
@@ -165,5 +172,4 @@ async def main(room_url: str, token):
 
 
 if __name__ == "__main__":
-    (url, token) = configure()
-    asyncio.run(main(url, token))
+    asyncio.run(main())