Revert "LoadIncrementalHFiles is not picking up the -D option"

This reverts commit 1f053b274b980a02ca50843dff5c02f037c0a3bc.
HBASE-11789 LoadIncrementalHFiles is not picking up the -D option
HBASE-11450 Improve file size info in SnapshotInfo tool (addendum)
HBASE-11326 Use an InputFormat for ExportSnapshot
HBASE-11802 - Scan copy constructor doesn't copy reversed member variable