Just use synchronize to sync the repos

We don't have cached repos, and our repos aren't so big
that we want to care about the git push difference.

Also - dont do delete: true like prepare-workspace does,
because deleting and then re-pushing project-config depending
on job would be costly.

Change-Id: I4c7bbc797f9f81878424b7bf2b7e83ec756de108

playbooks/zuul/run-production-playbook.yaml

@@ -15,8 +15,13 @@
 
 - hosts: bridge.openstack.org
   tasks:
-    - include_role:
-        name: mirror-workspace-git-repos
+    - name: Synchronize src repos to workspace directory.
+      synchronize:
+        delete: false
+        dest: .
+        recursive: true
+        src: "{{ zuul.executor.src_root }}"
+      no_log: true
 
     - name: Run the production playbook and capture logs
       block: