LU-17129 tests: cleanup fileset info on nodemaps

LU-17129 tests: cleanup fileset info on nodemaps

In sanity-sec, fileset info added to nodemaps via 'set_param -P' must
be removed afterwards with 'set_param -P -d', otherwise those commands
will remain in the llogs.

Lustre-change: https://review.whamcloud.com/52408
Lustre-commit: 16e4383e90f630dfcce20e2675bb887471b6a9c8

Test-Parameters: trivial mdscount=2 mdtcount=4 testlist=sanity-sec env=ONLY=27
Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Change-Id: I75bd0dc263f71c7f5d9ece028cc038eb1f2ca9a4
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/52706
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>