hg: jdk/jdk: 8245825: Shenandoah: Remove diagnostic flag ShenandoahConcurrentScanCodeRoots

[zgu at redhat.com]

Changeset: c400660833b2
Author:    zgu
Date:      2020-05-27 08:53 -0400
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/c400660833b2

8245825: Shenandoah: Remove diagnostic flag ShenandoahConcurrentScanCodeRoots
Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp
! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.inline.hpp
! src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp