Remove destructuring and default arguments runtime flags

test/mjsunit/harmony/regress/regress-4395-global-eval.js

Index: test/mjsunit/harmony/regress/regress-4395-global-eval.js
diff --git a/test/mjsunit/harmony/regress/regress-4395-global-eval.js b/test/mjsunit/harmony/regress/regress-4395-global-eval.js
deleted file mode 100644
index b4579b141f364762c7df0d3735e835960a9da98d..0000000000000000000000000000000000000000
--- a/test/mjsunit/harmony/regress/regress-4395-global-eval.js
+++ /dev/null
@@ -1,8 +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.
-//
-// Flags: --harmony-default-parameters --harmony-destructuring-bind
-
-((x, y = eval('x')) => assertEquals(42, y))(42);
-((x, {y = eval('x')}) => assertEquals(42, y))(42, {});