private TSDeleteDataReq genTSDeleteDataReq(List<String> paths, long startTime, long endTime) {
    TSDeleteDataReq request = new TSDeleteDataReq();
    request.setPaths(paths);
    request.setStartTime(startTime);
    request.setEndTime(endTime);
    return request;
  }
delete data >= startTime and data <= endTime in multiple timeseries

@param paths data in which time series to delete
@param startTime delete range start time
@param endTime delete range end time
iotdb-client/session/src/main/java/org/apache/iotdb/session/Session.java