Remove Ubuntu Focal nodesets

Signed-off-by: Vladimir Kozhukalov <kozhukalov@gmail.com>
Change-Id: I64a9b0405fb1032d02184667fc3a0d506b3aabc6

zuul.d/nodesets.yaml

@@ -11,71 +11,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- nodeset:
-    name: openstack-helm-1node-ubuntu_focal
-    nodes:
-      - name: primary
-        label: ubuntu-focal
-    groups:
-      - name: primary
-        nodes:
-          - primary
-      - name: k8s_cluster
-        nodes:
-          - primary
-      - name: k8s_control_plane
-        nodes:
-          - primary
-
-- nodeset:
-    name: openstack-helm-3nodes-ubuntu_focal
-    nodes:
-      - name: primary
-        label: ubuntu-focal
-      - name: node-1
-        label: ubuntu-focal
-      - name: node-2
-        label: ubuntu-focal
-    groups:
-      - name: primary
-        nodes:
-          - primary
-      - name: nodes
-        nodes:
-          - node-1
-          - node-2
-      - name: k8s_cluster
-        nodes:
-          - primary
-          - node-1
-          - node-2
-      - name: k8s_control_plane
-        nodes:
-          - primary
-      - name: k8s_nodes
-        nodes:
-          - node-1
-          - node-2
-
-- nodeset:
-    name: openstack-helm-1node-32GB-ubuntu_focal
-    nodes:
-      - name: primary
-        # This label is available in vexxhost ca-ymq-1 region
-        # The flavor v3-standard-8 in this particular region has
-        # 32GB nodes. The number of such nodes is extremely limited.
-        label: ubuntu-focal-32GB
-    groups:
-      - name: primary
-        nodes:
-          - primary
-      - name: k8s_cluster
-        nodes:
-          - primary
-      - name: k8s_control_plane
-        nodes:
-          - primary
-
 - nodeset:
     name: openstack-helm-1node-ubuntu_jammy
     nodes: