Remove UUID token from Patrole jobs

According to discussion in the mailing list [0] using UUID tokens
is currently resulting in errant Keystone-related bugs. Further,
UUID tokens are currently deprecated and will be removed during
R release [0]. So we should use Fernet tokens instead.

[0] http://lists.openstack.org/pipermail/openstack-dev/2017-August/121067.html

Change-Id: I34d324575c8117022724a944c034f089eb0c7541
Related-Bug: #1710237

jenkins/jobs/patrole.yaml

@@ -21,8 +21,6 @@
             TEMPEST_PLUGINS='/opt/stack/new/patrole'
             # Needed by Patrole devstack plugin
             RBAC_TEST_ROLE={rbac-role}
-            # Optimize test run time by using Keystone UUID tokens
-            KEYSTONE_TOKEN_FORMAT=uuid
       - shell: |
           #!/bin/bash -xe
           export PYTHONUNBUFFERED=true
@@ -71,8 +69,6 @@
             TEMPEST_PLUGINS='/opt/stack/new/patrole'
             # Needed by Patrole devstack plugin
             RBAC_TEST_ROLE={rbac-role}
-            # Optimize test run time by using Keystone UUID tokens
-            KEYSTONE_TOKEN_FORMAT=uuid
 
             # Swift is not ready for python3 yet
             disable_service s-account
@@ -132,8 +128,6 @@
             TEMPEST_PLUGINS='/opt/stack/new/patrole'
             # Needed by Patrole devstack plugin
             RBAC_TEST_ROLE={rbac-role}
-            # Optimize test run time by using Keystone UUID tokens
-            KEYSTONE_TOKEN_FORMAT=uuid
       - shell: |
           #!/bin/bash -xe
           export PYTHONUNBUFFERED=true