zuul functional job: drop the custom playbooks

The base devstack-tox-functional* jobs now set the required
environment (OS_* vars set by devstack) before calling tox.

Depends-On: https://review.opendev.org/746235
Change-Id: I7b6d49ea8320e014e2ef444e456f6eea02eca912

.zuul.yaml

@@ -1,13 +1,12 @@
 - job:
     name: python-novaclient-functional
-    parent: devstack
-    run: playbooks/python-novaclient-functional.yaml
-    post-run: playbooks/post.yaml
+    parent: devstack-tox-functional
     timeout: 7200
     required-projects:
       - openstack/nova
       - openstack/python-novaclient
     vars:
+      openrc_enable_export: true
       devstack_localrc:
         USE_PYTHON3: true
     irrelevant-files:

playbooks/post.yaml

@@ -1,6 +0,0 @@
-- hosts: all
-  vars:
-    tox_envlist: functional
-  roles:
-    - fetch-tox-output
-    - fetch-subunit-output

playbooks/python-novaclient-functional.yaml

@@ -1,14 +0,0 @@
-- hosts: all
-  roles:
-    - run-devstack
-    # Run bindep and test-setup after devstack so that they won't interfere
-    - role: bindep
-      bindep_profile: test
-      bindep_dir: "{{ zuul_work_dir }}"
-    - test-setup
-    - get-os-environment
-    - ensure-tox
-    - role: tox
-      tox_envlist: functional
-      tox_install_siblings: false
-      environment: "{{ os_env_vars }}"

roles/get-os-environment/defaults/main.yaml

@@ -1,2 +0,0 @@
----
-openrc_file: "{{ devstack_base_dir|default('/opt/stack') }}/devstack/openrc"

roles/get-os-environment/tasks/main.yaml

@@ -1,12 +0,0 @@
-- name: Extract the OS_ environment variables
-  shell:
-    cmd: |
-      source {{ openrc_file }} admin admin &>/dev/null
-      env | awk -F= 'BEGIN {print "---" } /^OS_/ { print "  "$1": \""$2"\""} '
-  args:
-    executable: "/bin/bash"
-  register: env_os
-
-- name: Save the OS_ environment variables as a fact
-  set_fact:
-    os_env_vars: "{{ env_os.stdout|from_yaml }}"