Disable logging on Mitaka model

Change-Id: I9bfda6b7a88fe0bee43405a83f64c854300353f4
diff --git a/classes/cluster/virtual-mcp11-aio/openstack/init.yml b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
index b7a12f6..76e66fa 100755
--- a/classes/cluster/virtual-mcp11-aio/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
@@ -90,9 +90,6 @@
     runtest_tempest_log_file: /home/rally/rally_reports/tempest.log
     artifactory_user: artifactory_user
     artifactory_password: artifactory_password
-    openstack_log_appender: true
-    openstack_fluentd_handler_enabled: true
-    openstack_ossyslog_handler_enabled: true
   galera:
     master:
       members: ~