Remove remaining job with Ubuntu Jammy (22.04)

... because Ubuntu Noble (24.04) is the only supported version since
2025.2 .

Change-Id: Ic06900f1fa2754b74c2259572922cf1f411d223a
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

.zuul.d/project.yaml

@@ -17,7 +17,6 @@
         - horizon-dsvm-tempest-plugin
         - horizon-tox-bandit-baseline
         - horizon-tempest-plugin-ipv6
-        - horizon-dsvm-tempest-plugin-ubuntu-jammy
     gate:
       jobs:
         - horizon-dsvm-tempest-plugin
@@ -25,7 +24,6 @@
         - horizon-integration-pytest
         - horizon-ui-pytest
         - horizon-tempest-plugin-ipv6
-        - horizon-dsvm-tempest-plugin-ubuntu-jammy
     experimental:
       jobs:
         - horizon-integration-pytest-xstatic-master

.zuul.d/tempest-and-integrated.yaml

@@ -91,14 +91,6 @@
       tempest_test_regex: test_dashboard_basic_ops
       tox_envlist: all
 
-# TODO(gmann): As per the 2025.1 testing runtime, we need to run at least
-# one job on jammy. This job can be removed in the next cycle(2025.2)
-- job:
-    name: horizon-dsvm-tempest-plugin-ubuntu-jammy
-    description: This is integrated compute job testing on Ubuntu jammy(22.04)
-    parent: horizon-dsvm-tempest-plugin
-    nodeset: openstack-single-node-jammy
-
 - job:
     name: horizon-tempest-plugin-ipv6
     parent: devstack-tempest-ipv6