DC :dcmanager subcloud-group delete rest request doesn't return with status 204

[João Pedro Alexandroni Cordova de Sousa]

Brief Description
-----------------
On DC system, dcmanager subcloud-group delete rest request doesn't return with status 204 as per the starlinx documentation https://docs.starlingx.io/api-ref/distcloud/api-ref-dcmanager-v1.html?expanded=creates-a-subcloud-group-detail,modifies-a-specific-subcloud-group-detail,deletes-a-specific-subcloud-group-detail#subcloud-groups

all the api delete requests returns with status code "204" not 200

Severity
--------
Minor

Steps to Reproduce
------------------
1)On DC system, From the remote machine or from the system itself, get the token
2)On dcsystem, create the subcloud-group
dcmanager subcloud-group add --name test

3)Now delete the group using the delete request

Expected Behavior
------------------
return code for delete request should be 204 as per starlingx documentation

Actual Behavior
----------------
State what is the actual behavior

Reproducibility
---------------
Reproducible 100%

System Configuration
--------------------
Distributed Cloud

Test Activity
-------------
Automation

Workaround
----------
No Workaround

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/distcloud/+/855284

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/distcloud/+/855372

[OpenStack Infra (hudson-openstack)]

Change abandoned by "André Dexheimer Carneiro <email address hidden>" on branch: master
Review: https://review.opendev.org/c/starlingx/distcloud/+/855372
Reason: Accidentally created 2 reviews for the same commit.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/distcloud/+/855284
Committed: https://opendev.org/starlingx/distcloud/commit/198f8aab716130cc16d47eaea7b80dba315d8206
Submitter: "Zuul (22348)"
Branch: master

commit 198f8aab716130cc16d47eaea7b80dba315d8206
Author: Andre Carneiro <email address hidden>
Date: Wed Aug 31 14:06:49 2022 -0300

    Fixes documentation for subcloud-group delete

    The return code for the subcloud-group delete rest
    request was wrong in the documentation. The endpoint
    returns status 200 upon success, instead of 204 as
    was written in the documentation. This changes the
    documentation with the correct response code.

    Closes-Bug: 1988221

    Signed-off-by: Andre Carneiro <email address hidden>
    Change-Id: I6fc89e7c71dd51e8aaf2b9858ef89a7d5fdbb871