hg: jdk/sandbox: 8233280: Remove GCLockerInvokesConcurrent

[chris.hegarty at oracle.com]

Changeset: a129f10e1b9a
Author:    kbarrett
Date:      2019-11-15 16:58 -0500
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/a129f10e1b9a

8233280: Remove GCLockerInvokesConcurrent
Summary: Remove use and make option obsolete.
Reviewed-by: tschatzl, sjohanss

! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/shared/gc_globals.hpp
! src/hotspot/share/runtime/arguments.cpp