hg: shenandoah/jdk: Removed stringtable rehashing at safepoint, should perform concurrently

[zgu at redhat.com]

Changeset: f3202182671b
Author:    zgu
Date:      2018-06-08 13:22 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/f3202182671b

Removed stringtable rehashing at safepoint, should perform concurrently

! src/hotspot/share/runtime/safepoint.cpp
! src/hotspot/share/runtime/safepoint.hpp