hg: jdk9/dev/jdk: 8156536: Remove intermittent key from TreeTest.java and move back to tier1

[amy.lu at oracle.com]

Changeset: 73e1dc20396a
Author:    amlu
Date:      2016-06-28 14:39 +0800
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/73e1dc20396a

8156536: Remove intermittent key from TreeTest.java and move back to tier1
Reviewed-by: darcy

! test/TEST.groups
! test/java/lang/ProcessHandle/TreeTest.java