Revert of Array length reduction should throw in strict mode if it can't delete an element.

test/mjsunit/regress/regress-4267.js

Index: test/mjsunit/regress/regress-4267.js
diff --git a/test/mjsunit/regress/regress-4267.js b/test/mjsunit/regress/regress-4267.js
deleted file mode 100644
index f8cf7467230840416aa0ddb30bed01fb34d2e0f7..0000000000000000000000000000000000000000
--- a/test/mjsunit/regress/regress-4267.js
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2016 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.
-
-// Flags: --allow-natives-syntax
-
-"use strict";
-
-var a = [];
-Object.defineProperty(a, "0", {configurable: false, value: 10});
-assertEquals(1, a.length);
-var setter = ()=>{ a.length = 0; };
-assertThrows(setter);
-assertThrows(setter);
-%OptimizeFunctionOnNextCall(setter);
-assertThrows(setter);