protected void deleteRegion(Configuration conf, final TableDescriptor htd, byte[] startKey,
    byte[] endKey, boolean unassign, boolean metaRow, boolean hdfs)
    throws IOException, InterruptedException {
    deleteRegion(conf, htd, startKey, endKey, unassign, metaRow, hdfs, false,
      RegionInfo.DEFAULT_REPLICA_ID);
  }
Delete a region from assignments, meta, or completely from hdfs.
@param unassign if true unassign region if assigned
@param metaRow  if true remove region's row from META
@param hdfs     if true remove region's dir in HDFS
hbase-server/src/test/java/org/apache/hadoop/hbase/util/BaseTestHBaseFsck.java