remove unnecessary assignment

Author: arjxn-py

ipykernel/debugger.py

@@ -508,8 +508,7 @@ async def source(self, message):
 
     async def stackTrace(self, message):
         """Handle a stack trace message."""
-        reply = await self._forward_message(message)
-        return reply
+        return await self._forward_message(message)
 
     def accept_variable(self, variable_name):
         """Accept a variable by name."""