Remove unused get_ice_servers function from turn.py to simplify the codebase and eliminate unnecessary dependencies.

utils/turn.py

@@ -1,19 +0,0 @@
-import os, logging
-from twilio.rest import Client
-import streamlit as st
-
-logger = logging.getLogger(__name__)
-
-
-@st.cache_data
-def get_ice_servers():
-    try:
-        sid = os.environ["TWILIO_ACCOUNT_SID"]
-        token = os.environ["TWILIO_AUTH_TOKEN"]
-    except KeyError:
-        logger.warning("Twilio credentials not set; falling back to public STUN only.")
-        return [{"urls": ["stun:stun.l.google.com:19302"]}]
-    client = Client(sid, token)
-    # This will return both STUN and TURN servers from Twilio
-    token = client.tokens.create()
-    return token.ice_servers