private void unassignMetaReplica(HbckRegionInfo hi)
    throws IOException, InterruptedException, KeeperException {
    undeployRegions(hi);
    ZKUtil.deleteNode(zkw,
      zkw.getZNodePaths().getZNodeForReplica(hi.getMetaEntry().getRegionInfo().getReplicaId()));
  }
Check values in regionInfo for hbase:meta Check if zero or more than one regions with
hbase:meta are found. If there are inconsistencies (i.e. zero or more than one regions pretend
to be holding the hbase:meta) try to fix that and report an error.
@throws IOException from HBaseFsckRepair functions
hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java