@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    in.readByte(); // for backwards compatibility
  }
This message is used to implement clear. It is only used when a region is not a replica and has
concurrency checks enabled and some other member has a replica. In that case it sends this
message to the replica to ask it to do the clear.

@since GemFire 7.0
geode-core/src/main/java/org/apache/geode/internal/cache/tx/RemoteClearMessage.java