remove line
diff --git a/rocketmq-streams-window/src/main/java/org/apache/rocketmq/streams/window/model/WindowCache.java b/rocketmq-streams-window/src/main/java/org/apache/rocketmq/streams/window/model/WindowCache.java
index c53a50f..28ed5da 100644
--- a/rocketmq-streams-window/src/main/java/org/apache/rocketmq/streams/window/model/WindowCache.java
+++ b/rocketmq-streams-window/src/main/java/org/apache/rocketmq/streams/window/model/WindowCache.java
@@ -105,7 +105,6 @@
             JSONObject jsonObject=shuffleChannel.createMsg(allMsgs,split);
 //            JSONObject zipJsonObject = new JSONObject();
 //            zipJsonObject.put(COMPRESSION_MSG_DATA, CompressUtil.gZip(jsonObject.toJSONString()));
-//            zipJsonObject.put(IS_COMPRESSION_MSG, true);
             shuffleChannel.getProducer().batchAdd(new Message(jsonObject), split);
             shuffleChannel.getProducer().flush(split.getQueueId());
             long cost=System.currentTimeMillis()-start;