Remove Ubuntu Bionic jobs

Change-Id: I3fcc7c259ee625c116ae8d82552259401c7ddc66

zuul.d/devstack.yaml

@@ -151,13 +151,6 @@
     voting: true
 
 
-- job:
-    name: tobiko-devstack-functional-ubuntu-bionic
-    parent: tobiko-devstack-functional
-    nodeset: openstack-single-node-bionic
-    voting: false
-
-
 - job:
     name: tobiko-devstack-functional-ubuntu-focal
     parent: tobiko-devstack-functional
@@ -223,20 +216,6 @@
     voting: false
 
 
-- job:
-    name: tobiko-devstack-faults-ubuntu-bionic
-    parent: tobiko-devstack-faults
-    nodeset: openstack-three-node-bionic
-    voting: false
-    vars:
-      devstack_services:
-        tls-proxy: true
-    group-vars:
-      subnode:
-        devstack_services:
-          tls-proxy: true
-
-
 - job:
     name: tobiko-devstack-faults-ubuntu-focal
     parent: tobiko-devstack-faults

zuul.d/infrared.yaml

@@ -63,15 +63,6 @@
       Run test cases using tobiko infrared plugin on latest Fedora
 
 
-- job:
-    name: tobiko-tox-infrared-ubuntu-bionic
-    parent: tobiko-tox-infrared
-    nodeset: ubuntu-bionic-2-node
-    voting: false
-    description: |
-      Run test cases using tobiko infrared plugin on Ubuntu Bionic
-
-
 - job:
     name: tobiko-tox-infrared-ubuntu-focal
     parent: tobiko-tox-infrared

zuul.d/project.yaml

@@ -15,15 +15,12 @@
     check:
       jobs:
         - tobiko-devstack-functional-centos-8
-        - tobiko-devstack-functional-ubuntu-bionic
         - tobiko-devstack-functional-ubuntu-focal
         - tobiko-devstack-faults-centos-8
-        - tobiko-devstack-faults-ubuntu-bionic
         - tobiko-devstack-faults-ubuntu-focal
         - tobiko-tox-infrared-centos-7
         - tobiko-tox-infrared-centos-8
         - tobiko-tox-infrared-fedora-latest
-        - tobiko-tox-infrared-ubuntu-bionic
         - tobiko-tox-infrared-ubuntu-focal
 
     gate:
@@ -34,10 +31,8 @@
     periodic:
       jobs:
         - tobiko-devstack-functional-centos-8
-        - tobiko-devstack-functional-ubuntu-bionic
         - tobiko-devstack-functional-ubuntu-focal
         - tobiko-devstack-faults-centos-8
-        - tobiko-devstack-faults-ubuntu-bionic
         - tobiko-devstack-faults-ubuntu-focal
         - tobiko-tripleo-functional
         - tobiko-tripleo-faults