hg: jdk/sandbox: 8243307: Shenandoah: remove ShCollectionSet::live_data

[chris.hegarty at oracle.com]

Changeset: 7eb922e55148
Author:    shade
Date:      2020-04-22 11:45 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/7eb922e55148

8243307: Shenandoah: remove ShCollectionSet::live_data
Reviewed-by: rkennke

! src/hotspot/share/gc/shenandoah/shenandoahCollectionSet.cpp
! src/hotspot/share/gc/shenandoah/shenandoahCollectionSet.hpp