[websocket] Remove System.out.println from ConsumerHandler
`System.out.println` is called in the code of WebSocket proxy. This seems to be for debugging and I think it should be removed.
@@ -283,7 +283,6 @@ public class ConsumerHandler extends AbstractWebSocketHandler {
private void handleNack(ConsumerCommand command) throws IOException {
MessageId msgId = MessageId.fromByteArrayWithTopic(Base64.getDecoder().decode(command.messageId),
topic.toString());
- System.out.println(msgId);
consumer.negativeAcknowledge(msgId);
checkResumeReceive();
}
