hg: shenandoah/jdk11: [backport] 8224043: Shenandoah: Remove clear_claimed_marks() from start of concurrent_traversal()

[rkennke at redhat.com]

Changeset: a2f8baebe8ce
Author:    rkennke
Date:      2019-05-16 19:07 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk11/rev/a2f8baebe8ce

[backport] 8224043: Shenandoah: Remove clear_claimed_marks() from start of concurrent_traversal()
Reviewed-by: shade

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