Merge "Skip test-setup.sh in pep8 jobs"

roles/test-setup/tasks/main.yaml

@@ -1,3 +1,5 @@
+- when: not test_setup_skip
+  block:
     - name: "Check if project's tools/test-setup.sh exists"
       stat:
         path: "{{ zuul_work_dir }}/tools/test-setup.sh"
@@ -11,4 +13,3 @@
       when:
         - p.stat.exists
         - p.stat.executable
-    - not test_setup_skip

zuul.d/python-jobs.yaml

@@ -147,6 +147,7 @@
       Uses tox with the ``pep8`` environment.
     vars:
       tox_envlist: pep8
+      test_setup_skip: true
 
 - job:
     name: tox-cover