hg: jdk9/hs-rt/hotspot: 8150421: Delete experimental G1UseConcMarkReferenceProcessing

[kim.barrett at oracle.com]

Changeset: d509f28e025c
Author:    kbarrett
Date:      2016-02-28 12:22 -0500
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/d509f28e025c

8150421: Delete experimental G1UseConcMarkReferenceProcessing
Summary: Removed the option and supporting code.
Reviewed-by: jmasa, tamao

! src/share/vm/gc/g1/g1ConcurrentMark.cpp
! src/share/vm/gc/g1/g1_globals.hpp