LU-9474 tests: remove unneeded hsm_set_param for raolu tests

LU-9474 tests: remove unneeded hsm_set_param for raolu tests

A previous commit introduced the stack_trap() utility function,
the patch should have removed any duplicate cleanup actions but
missed a few in test_26{a,b,c,d} of sanity-hsm.

This commits removes them.

Test-Parameters: trivial testlist=sanity-hsm
Signed-off-by: Quentin Bouget <quentin.bouget@cea.fr>
Change-Id: I63e1df6610d0fbceb2f88a5b59b8263b8ccaf525
Reviewed-on: https://review.whamcloud.com/31429
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Nunez <james.a.nunez@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>