hg: jdk/sandbox: 8240915: Shenandoah: Remove unused fields in init mark tasks

[chris.hegarty at oracle.com]

Changeset: 724e0cf52991
Author:    zgu
Date:      2020-03-12 09:25 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/724e0cf52991

8240915: Shenandoah: Remove unused fields in init mark tasks
Reviewed-by: rkennke

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp
! src/hotspot/share/gc/shenandoah/shenandoahTraversalGC.cpp