去除多余的import

Author: dengdejiushini

elasticsearch5/elasticsearch5-sink/src/main/java/com/dtstack/flink/sql/sink/elasticsearch/EsUtil.java

@@ -22,7 +22,6 @@
 import org.apache.flink.util.Preconditions;
 
 import com.dtstack.flink.sql.util.DtStringUtil;
-import org.apache.commons.lang3.StringUtils;
 
 import java.util.HashMap;
 import java.util.List;

hbase/hbase-side/hbase-side-core/src/main/java/com/dtstack/flink/sql/side/hbase/RowKeyBuilder.java

@@ -22,7 +22,6 @@
 
 import com.dtstack.flink.sql.side.hbase.enums.EReplaceType;
 import com.google.common.collect.Lists;
-import org.apache.commons.lang3.StringUtils;
 
 import java.io.Serializable;
 import java.util.List;