hg: jdk9/hs-rt/hotspot: 8151781: DirtyCardQueue::apply_closure is unused

[kim.barrett at oracle.com]

Changeset: 3c19d66914bc
Author:    kbarrett
Date:      2016-03-16 00:28 -0400
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/3c19d66914bc

8151781: DirtyCardQueue::apply_closure is unused
Summary: Remove dead code, followup cleanups.
Reviewed-by: brutisso, pliden

! src/share/vm/gc/g1/dirtyCardQueue.cpp
! src/share/vm/gc/g1/dirtyCardQueue.hpp