Remove leftover about removed beaker job

Change-Id: Id0762d06e8613ddfc77a0c8efa2119b0204390ec

playbooks/prepare-node-beaker.yaml

@@ -1,24 +0,0 @@
-- hosts: all
-  tasks:
-    - shell:
-        cmd: |
-          set -e
-          set -x
-
-          if [ -d /home/zuul/src/opendev.org/$ZUUL_PROJECT ]; then
-              cp -dR /home/zuul/src/opendev.org/$ZUUL_PROJECT/. .
-          else
-              git clone https://opendev.org/$ZUUL_PROJECT .
-          fi
-          if [ -d /home/zuul/src/opendev.org/openstack/puppet-openstack-integration ]; then
-              [ ! -d puppet-openstack-integration ] && mkdir puppet-openstack-integration
-              cp -dR /home/zuul/src/opendev.org/openstack/puppet-openstack-integration/. puppet-openstack-integration
-          else
-              git clone https://opendev.org/openstack/puppet-openstack-integration puppet-openstack-integration
-          fi
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
-    - include_role:
-        name: bindep