[zfs-crypto-discuss] prevent dskek from being changed, remove old hash function

[anthony.scarp...@sun.com]

Author: Anthony Scarpino <Anthony.Scarpino at Sun.COM>
Repository: /hg/zfs-crypto/zfs-crypto-gate
Latest revision: 9ac479b483ce4c5436d0f2af933fa4d7d833bd65
Total changesets: 1
Log message:
prevent dskek from being changed, remove old hash function

Files:
        update: usr/src/cmd/zpool/zpool_main.c
        update: usr/src/lib/libzfs/common/libzfs_crypto.c