Revert "Throw exception on invalid string length instead of OOM."

test/mjsunit/string-oom-concat.js

Index: test/mjsunit/string-oom-concat.js
diff --git a/test/mjsunit/string-oom-concat.js b/test/mjsunit/string-oom-concat.js
deleted file mode 100644
index 9529c8938194609f5fd71fef4a6e1c94fd2cb913..0000000000000000000000000000000000000000
--- a/test/mjsunit/string-oom-concat.js
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2014 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.
-
-function concat() {
-  var a = " ";
-  for (var i = 0; i < 100; i++) {
-    a += a;
-  }
-}
-
-assertThrows(concat, RangeError);