hg: jdk/jdk: 8210061: ZGC: Remove STW weak processor mode

[erik.osterlund at oracle.com]

Changeset: b459c731901b
Author:    eosterlund
Date:      2018-08-30 08:59 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/b459c731901b

8210061: ZGC: Remove STW weak processor mode
Reviewed-by: pliden, kbarrett

! src/hotspot/share/gc/z/zRootsIterator.cpp
! src/hotspot/share/gc/z/zRootsIterator.hpp
! src/hotspot/share/gc/z/z_globals.hpp