diff --git a/src/python/grpcio/grpc/_channel.py b/src/python/grpcio/grpc/_channel.py
index b19c64d3a6e9095c6e82a989329b9a696c352974..f1584940a86fb6e40d1d95caac19feee9801eca8 100644
--- a/src/python/grpcio/grpc/_channel.py
+++ b/src/python/grpcio/grpc/_channel.py
@@ -159,7 +159,6 @@ def _event_handler(state, response_deserializer):
             state.condition.notify_all()
             done = not state.due
         for callback in callbacks:
-            # TODO(gnossen): Are these *only* user callbacks?
             try:
                 callback()
             except Exception as e:  # pylint: disable=broad-except