Revert "KUDU-3371 [fs] Use RocksDB to store LBM metadata"

This reverts commit 58d2338de8d586106ea29cfa281ee653392a9145.

Reason for revert: constant Jenkins failures for the last week+.

Change-Id: I792b4b9d775e60a301a01d9af81d7a0955e4ce2c
Reviewed-on: http://gerrit.cloudera.org:8080/21027
Reviewed-by: Zoltan Chovan <zchovan@cloudera.com>
Reviewed-by: Marton Greber <greber.mx@gmail.com>
Tested-by: Marton Greber <greber.mx@gmail.com>
32 files changed