removed unecessary import
@@ -23,7 +23,6 @@ import org.apache.flink.api.common.functions.FlatMapFunction;
import org.apache.flink.util.Collector;
import org.streampipes.model.runtime.Event;
-import java.util.Iterator;
import java.util.List;
public class StatisticsSummaryCalculator implements FlatMapFunction<Event, Event> {
