Update test-vars.yml for repositories

Renamed in os_designate role repo
Changed test-vars.yml to os_designate-overrides.yml
Removed the test-vars.yml file

Change-Id: Ic3d5c3094d96cf0026564fcc8407157dfc87cec4
Partial-Bug: #1629284

tests/test-designate-functional.yml

@@ -24,4 +24,3 @@
         {{ tempest_venv_bin | dirname }}/run_tempest.sh --no-virtual-env --serial designate_tempest_plugin.tests.scenario.v2.test_zones
   vars_files:
     - common/test-vars.yml
-    - test-vars.yml

tests/test-install-designate.yml

@@ -97,7 +97,6 @@
     - role: "os_designate"
   vars_files:
     - common/test-vars.yml
-    - test-vars.yml
 
 
 - name: Import pools
@@ -115,4 +114,3 @@
         {{ designate_bin }}/designate-manage pool update --file /etc/designate/pools.yaml
   vars_files:
     - common/test-vars.yml
-    - test-vars.yml

tests/test-install-tempest.yml

@@ -21,4 +21,3 @@
     - role: "os_tempest"
   vars_files:
     - common/test-vars.yml
-    - test-vars.yml

tox.ini

@@ -136,6 +136,7 @@ deps =
 commands =
     {[testenv:ansible]commands}
     ansible-playbook -i {toxinidir}/tests/inventory \
+                     -e @{toxinidir}/tests/os_designate-overrides.yml \
                      {toxinidir}/tests/test.yml -vvvv
     {[testenv:func_logs]commands}