hg: jdk9/sandbox/jdk: 8129624: Move jdk_rmi test group from tier 2 to tier 3

[chris.hegarty at oracle.com]

Changeset: b790ab92cf13
Author:    darcy
Date:      2015-06-25 11:59 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/b790ab92cf13

8129624: Move jdk_rmi test group from tier 2 to tier 3
Reviewed-by: alanb, smarks

! test/TEST.groups