hg: openjfx/8/graphics/rt: [TEST-ONLY] Disable failing tests until RT-33741 is fixed

[hang.vo at oracle.com]

Changeset: 5064b699677f
Author:    kcr
Date:      2013-10-22 06:43 -0700
URL:       http://hg.openjdk.java.net/openjfx/8/graphics/rt/rev/5064b699677f

[TEST-ONLY] Disable failing tests until RT-33741 is fixed

! tests/system/src/test/java/javafx/scene/layout/RegionBackgroundImageUITest.java