hg: jdk9/client/jdk: 8154546: Retire sun.misc.GThreadHelper

[philip.race at oracle.com]

Changeset: 7f6e7d69a033
Author:    prr
Date:      2016-05-12 09:16 -0700
URL:       http://hg.openjdk.java.net/jdk9/client/jdk/rev/7f6e7d69a033

8154546: Retire sun.misc.GThreadHelper
Reviewed-by: serb, chegar, kcr

! src/java.desktop/unix/native/libawt_xawt/awt/gtk2_interface.c
- src/jdk.unsupported/unix/classes/sun/misc/GThreadHelper.java