hg: jdk/sandbox: 8245955: Shenandoah: Remove LRB/is_redundant optimization

[chris.hegarty at oracle.com]

Changeset: 906d56546867
Author:    rkennke
Date:      2020-05-28 16:43 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/906d56546867

8245955: Shenandoah: Remove LRB/is_redundant optimization
Reviewed-by: roland, shade

! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.hpp
! src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp