Remove duplicate test_unmanage_volume test

This patchset removes the duplicate test_umanage_volume test
from test_volume_actions_rbac [0] because it is more appropriate
to keep it in test_volumes_manage_rbac [1]. Besides the latter
implementation is more robust.

[0] https://github.com/openstack/patrole/blob/1f2ba24f4df09ba3711aa520bdf1bedb63e7797a/patrole_tempest_plugin/tests/api/volume/test_volume_actions_rbac.py#L147
[1] https://github.com/openstack/patrole/blob/7676a21077b5d8078f5beb32f7186970f02fc1a1/patrole_tempest_plugin/tests/api/volume/test_volumes_manage_rbac.py#L113

Change-Id: I96705df2cfaf9e0885e53de15675581508dd7c3c
1 file changed