hg: openjfx/8u-dev/rt: [TEST] Disable failing unit test until RT-34508 is fixed

[hang . vo]

Changeset: 99d6740e7efd
Author:    kcr
Date:      2013-12-31 07:53 -0800
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/99d6740e7efd

[TEST] Disable failing unit test until RT-34508 is fixed

! modules/web/src/test/java/javafx/scene/web/CallbackTest.java