hg: shenandoah/jdk: Cleanup: removed unused code

[zgu at redhat.com]

Changeset: 89928b944f01
Author:    zgu
Date:      2018-05-11 16:44 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/89928b944f01

Cleanup: removed unused code

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