--- old/src/hotspot/os_cpu/linux_x86/zAddress_linux_x86.cpp	2018-02-22 08:31:55.922746863 +0100
+++ /dev/null	2018-02-16 08:22:25.482788954 +0100
@@ -1,41 +0,0 @@
-/*
- * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-#include "precompiled.hpp"
-#include "gc/z/zAddress.hpp"
-#include "runtime/thread.hpp"
-#include "runtime/threadSMR.hpp"
-#include "utilities/debug.hpp"
-
-void ZAddressMasks::platform_set_bad_mask(uintptr_t old_mask, uintptr_t new_mask) {
-  if (!UseR15TestInLoadBarrier) {
-    // R15-based test not used in load barriers
-    return;
-  }
-
-  // Update bad mask in all Java threads
-  for (JavaThreadIteratorWithHandle jtiwh; JavaThread* thread = jtiwh.next();) {
-    assert(thread->zaddress_bad_mask() == old_mask, "Previous bad mask is invalid");
-    thread->set_zaddress_bad_mask(new_mask);
-  }
-}