hg: shenandoah/jdk: Avoid stub when calling to write-barrier from C2, remove all related code

[roman at kennke.org]

Changeset: 630f375aaf9a
Author:    rkennke
Date:      2018-11-17 11:34 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/630f375aaf9a

Avoid stub when calling to write-barrier from C2, remove all related code

! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.cpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.hpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.hpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
- src/hotspot/share/gc/shenandoah/shenandoahBarrierSetAssembler.cpp
! src/hotspot/share/opto/lcm.cpp