HBASE-11991 Region states may be out of sync
HBASE-11405 Multiple invocations of hbck in parallel disables balancer permanently (Bharath Vissapragada)
Revert "HBASE-11405 Multiple invocations of hbck in parallel disables balancer permanently (Bharath Vissapragada)"

This reverts commit f4ecb1816b170e28d9afc96c137c9086222be456.

More comments came in, reverting until addressed.