@Override
  public void removeFromBackupSet(String name, TableName[] tables) throws IOException {
    LOG.info("Removing tables [" + StringUtils.join(tables, " ") + "] from '" + name + "'");
    try (final BackupSystemTable table = new BackupSystemTable(conn)) {
      table.removeFromBackupSet(name, toStringArray(tables));
      LOG.info(
        "Removing tables [" + StringUtils.join(tables, " ") + "] from '" + name + "' completed.");
    }
  }
Clean up the data at target directory
@throws IOException if cleaning up the backup directory fails
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupAdminImpl.java