lint issue fixed

Author: Roopan-Microsoft

src/backend/agents/group_chat_manager.py

@@ -304,7 +304,6 @@ async def _execute_step(self, session_id: str, step: Step):
             )
         )
 
-
         track_event_if_configured(
             f"Group Chat Manager - Requesting {formatted_agent} to perform the action and added into the cosmos",
             {

src/backend/app.py

@@ -23,7 +23,6 @@
 from event_utils import track_event_if_configured
 from fastapi.middleware.cors import CORSMiddleware
 from azure.monitor.opentelemetry import configure_azure_monitor
-from azure.monitor.events.extension import track_event
 from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor