Remove explicitily ubuntu jobs

Change-Id: I5c2bc95b814e53ed51208d3394dcdcaf04599d1a

zuul.d/ceph.yaml

@@ -36,10 +36,3 @@
     parent: devstack-tobiko-gate-ceph
     nodeset: devstack-tobiko-centos
     voting: false
-
-
-- job:
-    name: devstack-tobiko-gate-ceph-ubuntu
-    parent: devstack-tobiko-gate-ceph
-    nodeset: openstack-single-node-focal
-    voting: false

zuul.d/jobs.yaml

@@ -139,13 +139,6 @@
     voting: false
 
 
-- job:
-    name: devstack-tobiko-gate-ubuntu
-    parent: devstack-tobiko-gate
-    nodeset: openstack-single-node-focal
-    voting: false
-
-
 - job:
     name: devstack-tobiko-multinode
     parent: devstack-tobiko
@@ -215,17 +208,3 @@
     parent: devstack-tobiko-faults
     nodeset: devstack-tobiko-multinode-centos
     voting: false
-
-
-- job:
-    name: devstack-tobiko-faults-ubuntu
-    parent: devstack-tobiko-faults
-    nodeset: devstack-tobiko-multinode-ubuntu
-    voting: false
-    vars:
-      devstack_services:
-        tls-proxy: true
-    group-vars:
-      subnode:
-        devstack_services:
-          tls-proxy: true

zuul.d/octavia.yaml

@@ -45,10 +45,3 @@
     parent: devstack-tobiko-gate-octavia
     nodeset: devstack-tobiko-centos
     voting: false
-
-
-- job:
-    name: devstack-tobiko-gate-octavia-ubuntu
-    parent: devstack-tobiko-gate-octavia
-    nodeset: openstack-single-node-focal
-    voting: false

zuul.d/ovn.yaml

@@ -118,13 +118,6 @@
     voting: false
 
 
-- job:
-    name: devstack-tobiko-gate-ovn-ubuntu
-    parent: devstack-tobiko-gate-ovn
-    nodeset: openstack-single-node-focal
-    voting: false
-
-
 # --- Faults -----------------------------------------------------------------
 
 - job:
@@ -142,17 +135,3 @@
     parent: devstack-tobiko-faults-ovn
     nodeset: devstack-tobiko-multinode-centos
     voting: false
-
-
-- job:
-    name: devstack-tobiko-faults-ovn-ubuntu
-    parent: devstack-tobiko-faults-ovn
-    nodeset: devstack-tobiko-multinode-ubuntu
-    voting: false
-    vars:
-      devstack_services:
-        tls-proxy: true
-    group-vars:
-      subnode:
-        devstack_services:
-          tls-proxy: true

zuul.d/project.yaml

@@ -10,16 +10,10 @@
     check: &check_pipeline
       jobs:
         - devstack-tobiko-gate-centos
-        - devstack-tobiko-gate-ubuntu
         - devstack-tobiko-gate-octavia-centos
-        - devstack-tobiko-gate-octavia-ubuntu
         - devstack-tobiko-gate-ceph-centos
-        - devstack-tobiko-gate-ceph-ubuntu
         - devstack-tobiko-gate-ovn-centos
-        - devstack-tobiko-gate-ovn-ubuntu
         - devstack-tobiko-faults-centos
-        - devstack-tobiko-faults-ubuntu
         - devstack-tobiko-faults-ovn-centos
-        - devstack-tobiko-faults-ovn-ubuntu
 
     periodic: *check_pipeline