Remove job legacy-puppet-beaker-rspec

This job is unused, remove it.

Note that the playbooks have been removed already, just the job defintion
was stale.

Change-Id: Icd8206c2c73a44d7e9e3e91a8ace4fb8187eff19

zuul.d/zuul-legacy-jobs.yaml

@@ -805,23 +805,6 @@
       - x/tap-as-a-service
       - openstack/tempest
 
-- job:
-    name: legacy-puppet-beaker-rspec
-    parent: legacy-puppet-openstack-integration
-    run: playbooks/legacy/puppet-beaker-rspec/run.yaml
-    post-run: playbooks/legacy/puppet-beaker-rspec/post.yaml
-    timeout: 3600
-    required-projects:
-      - openstack/puppet-openstack-integration
-    irrelevant-files:
-      - ^.*\.md$
-      - ^.*\.rst$
-      - ^doc/.*$
-      - ^etc/.*$
-      - ^metadata.json$
-      - ^releasenotes/.*$
-      - ^test-requirements.txt$
-
 - job:
     name: legacy-puppet-httpd-forge-upload
     parent: legacy-base