Remove some logging output

django_backend/backend/models.py

@@ -167,7 +167,7 @@ class RabbitMQInstance(SingletonModel):
             channel.confirm_delivery()
             return channel
         except ConnectionClosed as exception:
-            LOGGER.error(self.msg('ConnectionClosed: ' + str(exception)))
+            # reinitialize the connection
             self._init_connection()
             return self._channel