LU-10796 tests: standardize changelog testing in sanity-hsm

LU-10796 tests: standardize changelog testing in sanity-hsm

To manage changelog users and changelog records, sanity-hsm used to
define:
 - changelog_setup
 - changelog_cleanup
 - changelog_get_flags

test-framework.sh implements similar functions:
 - changelog_register
 - changelog_deregister
 - changelog_dump
 - changelog2array (new in this patch)

This patch removes the implementations of sanity-hsm in favor of
those in test-framework.

Test-Parameters: trivial testlist=sanity-hsm
Signed-off-by: Quentin Bouget <quentin.bouget@cea.fr>
Change-Id: Ie3db8ef646fa48d06bf41b6025b3443de026cabd
Reviewed-on: https://review.whamcloud.com/31613
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>