LU-18723 hsm: sanity-hsm 500 hung in llapi_hsm_copytool_recv

LU-18723 hsm: sanity-hsm 500 hung in llapi_hsm_copytool_recv

sanity-hsm hung in test_500 in llapi_hsm_test test100.
The bug can be reproduced by the following test script:
ONLY="411 500" REFORMAT=yes ./sanity-hsm.sh

The reason is that the previous test case 411 does not cleanup
clearly and failed to unregister the HSM agent due to the
permission under the active rbac role and return -EPERM:
mdt_hsm_ct_unregister() {
	...
	if (!mdt_hsm_is_admin(info))
		GOTO(out, rc = -EPERM);
	...

This bug can easily be solved by making sure nodemap is always removed
before the copytool is cleaned up.

Test-Parameters: trivial testlist=sanity-hsm
Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Change-Id: I093775eeaf39b4d2671e3a05e41f33a9e1d8ec5e
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/58084
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Tested-by: Robert Read <rread@ddn.com>
Reviewed-by: Robert Read <rread@ddn.com>
Reviewed-by: Li Xi <lixi@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>