Wrong loging of failed ostf tests in system test

[Tatyanka]

we should not add to failed test ostf test that has disabled status.
Output like :
Failed tests, fails: 2 should fail: 1 failed tests name: [{u'Typical stack actions: create, update, delete, show details, etc.': None}, {u'Check stack autoscaling': None}, {u'Check stack rollback': None}, {u'Sahara tests to create, list, start, checks and delete cluster': u'Fail create cluster template. Please refer to OpenStack logs for more details.'}, {u'Create volume and attach it to instance': u'There are no cinder nodes or ceph storage for volume'}] is wrong. Heat test was not run and has disabled status

[Openstack Gerrit (openstack-gerrit)]

Fix proposed to branch: master
Review: https://review.openstack.org/92435

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/92435
Committed: https://git.openstack.org/cgit/stackforge/fuel-main/commit/?id=a1f22f2592ae7374c8bcbbdd2b7bb815d09616fe
Submitter: Jenkins
Branch: master

commit a1f22f2592ae7374c8bcbbdd2b7bb815d09616fe
Author: Tatyana Leontovich <email address hidden>
Date: Tue May 6 21:53:51 2014 +0300

    Delete ostf test with disabled status

    Delete tests with disabled status from
    actual_failed_test

    Change-Id: I3a01b4aa64f287430f6dc1ca655b50f0d8df883e
    Closes-Bug: #1316741