Remove Debian jobs

Debian Stretch (the current target of "debian-stable") is no longer
supported by infra.  Remove these jobs.

Note: This change also removes unnecessary puppet 4 job from scenario
003 template.

Change-Id: I42b27b23cb7401d019997a442c47657e732cd472
(cherry picked from commit b97b8d3a61)

.zuul.yaml

@@ -140,11 +140,6 @@
       scenario: scenario001
       ceph: luminous
 
-- job:
-    name: puppet-openstack-integration-4-scenario001-tempest-debian-stable-luminous
-    parent: puppet-openstack-integration-4-scenario001
-    nodeset: debian-stable
-
 - job:
     name: puppet-openstack-integration-4-scenario002
     parent: puppet-openstack-integration-4
@@ -152,11 +147,6 @@
     vars:
       scenario: scenario002
 
-- job:
-    name: puppet-openstack-integration-4-scenario002-tempest-debian-stable
-    parent: puppet-openstack-integration-4-scenario002
-    nodeset: debian-stable
-
 - job:
     name: puppet-openstack-integration-4-scenario003
     parent: puppet-openstack-integration-4
@@ -164,11 +154,6 @@
     vars:
       scenario: scenario003
 
-- job:
-    name: puppet-openstack-integration-4-scenario003-tempest-debian-stable
-    parent: puppet-openstack-integration-4-scenario003
-    nodeset: debian-stable
-
 - job:
     name: puppet-openstack-integration-4-scenario004
     parent: puppet-openstack-integration-4
@@ -177,13 +162,6 @@
       scenario: scenario004
       ceph: mimic
 
-- job:
-    name: puppet-openstack-integration-4-scenario004-tempest-debian-stable-luminous
-    parent: puppet-openstack-integration-4-scenario004
-    nodeset: debian-stable
-    vars:
-      ceph: luminous
-
 - job:
     name: puppet-openstack-integration-5
     parent: puppet-openstack-integration-run-base
@@ -212,11 +190,6 @@
     parent: puppet-openstack-integration-5-scenario001
     nodeset: centos-7
 
-- job:
-    name: puppet-openstack-integration-5-scenario001-tempest-debian-stable-luminous
-    parent: puppet-openstack-integration-5-scenario001
-    nodeset: debian-stable
-
 - job:
     name: puppet-openstack-integration-5-scenario002
     parent: puppet-openstack-integration-5
@@ -239,11 +212,6 @@
     parent: puppet-openstack-integration-5-scenario002
     nodeset: centos-7
 
-- job:
-    name: puppet-openstack-integration-5-scenario002-tempest-debian-stable
-    parent: puppet-openstack-integration-5-scenario002
-    nodeset: debian-stable
-
 - job:
     name: puppet-openstack-integration-5-scenario003
     parent: puppet-openstack-integration-5
@@ -266,11 +234,6 @@
     parent: puppet-openstack-integration-5-scenario003
     nodeset: centos-7
 
-- job:
-    name: puppet-openstack-integration-5-scenario003-tempest-debian-stable
-    parent: puppet-openstack-integration-5-scenario003
-    nodeset: debian-stable
-
 - job:
     name: puppet-openstack-integration-5-scenario004
     parent: puppet-openstack-integration-5
@@ -294,13 +257,6 @@
     parent: puppet-openstack-integration-5-scenario004
     nodeset: centos-7
 
-- job:
-    name: puppet-openstack-integration-5-scenario004-tempest-debian-stable-luminous
-    parent: puppet-openstack-integration-5-scenario004
-    nodeset: debian-stable
-    vars:
-      ceph: luminous
-
 - project-template:
     name: puppet-openstack-integration-jobs-all
     check:
@@ -313,26 +269,12 @@
         - puppet-openstack-integration-5-scenario002-tempest-ubuntu-bionic
         - puppet-openstack-integration-5-scenario003-tempest-ubuntu-bionic
         - puppet-openstack-integration-5-scenario004-tempest-ubuntu-bionic-mimic
-        - puppet-openstack-integration-4-scenario001-tempest-debian-stable-luminous:
-            voting: false
-        - puppet-openstack-integration-4-scenario002-tempest-debian-stable:
-            voting: false
-        - puppet-openstack-integration-4-scenario003-tempest-debian-stable:
-            voting: false
-        - puppet-openstack-integration-4-scenario004-tempest-debian-stable-luminous:
-            voting: false
     gate:
       jobs:
         - puppet-openstack-integration-5-scenario001-tempest-centos-7-luminous
         - puppet-openstack-integration-5-scenario002-tempest-centos-7
         - puppet-openstack-integration-5-scenario003-tempest-centos-7
         - puppet-openstack-integration-5-scenario004-tempest-centos-7-mimic
-    experimental:
-      jobs:
-        - puppet-openstack-integration-5-scenario001-tempest-debian-stable-luminous
-        - puppet-openstack-integration-5-scenario002-tempest-debian-stable
-        - puppet-openstack-integration-5-scenario003-tempest-debian-stable
-        - puppet-openstack-integration-5-scenario004-tempest-debian-stable-luminous
 
 - project-template:
     name: puppet-openstack-integration-jobs-scenario001
@@ -340,14 +282,9 @@
       jobs:
         - puppet-openstack-integration-5-scenario001-tempest-ubuntu-bionic-mimic
         - puppet-openstack-integration-5-scenario001-tempest-centos-7-luminous
-        - puppet-openstack-integration-4-scenario001-tempest-debian-stable-luminous:
-            voting: false
     gate:
       jobs:
         - puppet-openstack-integration-5-scenario001-tempest-centos-7-luminous
-    experimental:
-      jobs:
-        - puppet-openstack-integration-5-scenario001-tempest-debian-stable-luminous
 
 - project-template:
     name: puppet-openstack-integration-jobs-scenario002
@@ -355,14 +292,9 @@
       jobs:
         - puppet-openstack-integration-5-scenario002-tempest-ubuntu-bionic
         - puppet-openstack-integration-5-scenario002-tempest-centos-7
-        - puppet-openstack-integration-4-scenario002-tempest-debian-stable:
-            voting: false
     gate:
       jobs:
         - puppet-openstack-integration-5-scenario002-tempest-centos-7
-    experimental:
-      jobs:
-        - puppet-openstack-integration-5-scenario002-tempest-debian-stable
 
 - project-template:
     name: puppet-openstack-integration-jobs-scenario003
@@ -370,15 +302,9 @@
       jobs:
         - puppet-openstack-integration-5-scenario003-tempest-ubuntu-bionic
         - puppet-openstack-integration-5-scenario003-tempest-centos-7
-        - puppet-openstack-integration-4-scenario003-tempest-debian-stable:
-            voting: false
     gate:
       jobs:
-        - puppet-openstack-integration-4-scenario003-tempest-centos-7
         - puppet-openstack-integration-5-scenario003-tempest-centos-7
-    experimental:
-      jobs:
-        - puppet-openstack-integration-5-scenario003-tempest-debian-stable
 
 - project-template:
     name: puppet-openstack-integration-jobs-scenario004
@@ -386,14 +312,9 @@
       jobs:
         - puppet-openstack-integration-5-scenario004-tempest-ubuntu-bionic-mimic
         - puppet-openstack-integration-5-scenario004-tempest-centos-7-mimic
-        - puppet-openstack-integration-4-scenario004-tempest-debian-stable-luminous:
-            voting: false
     gate:
       jobs:
         - puppet-openstack-integration-5-scenario004-tempest-centos-7-mimic
-    experimental:
-      jobs:
-        - puppet-openstack-integration-5-scenario004-tempest-debian-stable-luminous
 
 - job:
     name: puppet-openstack-module-base