hg: jdk/sandbox: 8228673: Remove develop flag StrictSafepointChecks

[chris.hegarty at oracle.com]

Changeset: dbe471d2f8f8
Author:    coleenp
Date:      2019-07-31 06:37 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/dbe471d2f8f8

8228673: Remove develop flag StrictSafepointChecks
Reviewed-by: shade, dholmes

! src/hotspot/share/gc/shared/memAllocator.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/mutex.cpp
! src/hotspot/share/runtime/synchronizer.cpp