HBASE-11007 BLOCKCACHE in schema descriptor seems not aptly named; REVERT

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.98@1595942 13f79535-47bb-0310-9956-ffa450edef68
HBASE-11090 Backport HBASE-11083 ExportSnapshot should provide capability to limit bandwidth consumption



git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.98@1595946 13f79535-47bb-0310-9956-ffa450edef68