完善es结果表文档

Author: 修竹

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

@@ -27,11 +27,9 @@
 import org.apache.flink.api.java.tuple.Tuple2;
 import org.apache.flink.api.java.typeutils.RowTypeInfo;
 import org.apache.flink.api.java.typeutils.TupleTypeInfo;
-import org.apache.flink.metrics.Counter;
 import org.apache.flink.streaming.api.datastream.DataStream;
 import org.apache.flink.streaming.api.datastream.DataStreamSink;
 import org.apache.flink.streaming.api.functions.sink.RichSinkFunction;
-import org.apache.flink.table.sinks.AppendStreamTableSink;
 import org.apache.flink.table.sinks.RetractStreamTableSink;
 import org.apache.flink.table.sinks.TableSink;
 import org.apache.flink.types.Row;