Undercloud : iscsid service is no longer required

[Takashi Kajinami]

Description
===========
The iscsid service in undercloud was used for iscsi deployment interface in Ironic.
However that interface was deprecated during Victoria[1] and was removed during Xena[2]

[1] https://review.opendev.org/c/openstack/ironic/+/750204
[2] https://review.opendev.org/c/openstack/ironic/+/789382

Because the service is no longer used, we should remove it from Undercloud.

Steps to reproduce
==================
* Deploy undercloud
* Check deployed tripleo_*.service

Expected result
===============
iscsid service is not enabled

Actual result
=============
iscsid service is still enabled but unused

Environment
===========
The issue is observed in master

Logs & Configs
==============
Example:
 https://zuul.opendev.org/t/openstack/build/013099311950400a84c4f6f884b3fb03

https://842a2d6dfb1a99e56a16-cf02a1947fec3ea7a230e93d6a5b1fec.ssl.cf2.rackcdn.com/838978/1/check/tripleo-ci-centos-9-undercloud-containers/0130993/logs/undercloud/var/log/extra/podman/podman_allinfo.log

The list of containers still includes the iscsid container.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/tripleo-heat-templates/+/842033

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tripleo-heat-templates/+/842033
Committed: https://opendev.org/openstack/tripleo-heat-templates/commit/3001bc82ef908828be29cad15e8f0a1f5288a03b
Submitter: "Zuul (22348)"
Branch: master

commit 3001bc82ef908828be29cad15e8f0a1f5288a03b
Author: Takashi Kajinami <email address hidden>
Date: Tue May 17 14:30:44 2022 +0900

    Undercloud: Remove iscsid service

    The iscsid service in undercloud was used for iscsi deploy interface
    in Ironic but it was deprecated during Victoria cycle[1] and was
    removed during Xena cycle[2].

    [1] d8dccc8d06017e79f2b49afec069a18b3c7413fc
    [2] 929907d68473ae8a433ebb8c4dcb110473d42676

    Closes-Bug: #1973682
    Change-Id: Ia430ffb7fb7ffe2d49e6b32f94d10a72c59e3a14

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 17.0.0 release.