remove one change, not be included in this release

Author: yanancai

articles/hdinsight/hdinsight-release-notes.md

@@ -42,11 +42,6 @@ Transport Layer Security (TLS) and Secure Sockets Layer (SSL) are cryptographic
 
 From this release, HDInsight will enforce all connection through TLS 1.2. A new property **minSupportedTlsVersion** is introduced via ARM template for cluster creation. The property is by-default "1.2", which means the cluster only supports TLS 1.2 and above. Customers can set this property to "1.1" specifically for backward compatibility.
 
-### Cluster worker node provisioning change
-When 80% of the worker nodes are ready, the cluster enters operational stage. At this stage, customers can do all the data plane operations like running scripts and jobs. But customers can't do any control plane operation like scaling up/down. Only deletion is supported.
-
-After entering the *operational* stage, the cluster waits for another 60 minutes for the remaining 20% of the worker nodes to come online. At the end of this 60 minutes, the cluster moves to the *running* stage, even if all of worker nodes are still not available. Once a cluster enters the *running* stage, you can use it as normal. Both control plan operations like scaling up/down, and data plan operations like running scripts and jobs are accepted. If all of the requested worker nodes are not available, the cluster will be marked as a partial success, and you will only be charged for the nodes that were deployed successfully. 
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 ## Upcoming changes
 The following changes will happen in upcoming releases.