Remove strong mode support from materialized literals.

test/message/strong-object-freeze-prop.out

Index: test/message/strong-object-freeze-prop.out
diff --git a/test/message/strong-object-freeze-prop.out b/test/message/strong-object-freeze-prop.out
deleted file mode 100644
index 0c611c5928851801fcaa4cac0d9283ee9a66e13b..0000000000000000000000000000000000000000
--- a/test/message/strong-object-freeze-prop.out
+++ /dev/null
@@ -1,9 +0,0 @@
-# Copyright 2015 the V8 project authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-*%(basename)s:11: TypeError: On strong object #<Object>, redefining writable, non-configurable property 'foo' to be non-writable is deprecated
-Object.defineProperty(o, "foo", { writable: false });
-       ^
-TypeError: On strong object #<Object>, redefining writable, non-configurable property 'foo' to be non-writable is deprecated
-    at Function.defineProperty (native)
-    at *%(basename)s:11:8