Remove base job

This is being moved to project-config because it needs to be
trusted.

Change-Id: I4151695c50253b73a021289ad94493a6b3d8f7ae
Depends-On: I6781923f08b39cfb6778ae581e0dea3b51ea31c4

.zuul.yaml

@@ -1,18 +1,3 @@
-- job:
-    name: base
-    pre-run: base/pre
-    post-run: base/post
-    roles:
-      - zuul: openstack-infra/openstack-zuul-roles
-    success-url: http://zuulv3-dev.openstack.org/logs/{build.uuid}/
-    failure-url: http://zuulv3-dev.openstack.org/logs/{build.uuid}/
-    timeout: 1800
-    vars:
-      zuul_workspace_root: /home/zuul
-    nodes:
-      - name: ubuntu-xenial
-        label: ubuntu-xenial
-
 - job:
     name: tox
     parent: base

playbooks/base/post.yaml

@@ -1,2 +0,0 @@
-- hosts: all
-  tasks: []

playbooks/base/pre.yaml

@@ -1,4 +0,0 @@
-- hosts: all
-  roles:
-    - prepare-workspace
-    - openstack-info