Remove destructuring and default arguments runtime flags

test/mjsunit/es6/regress/regress-4585.js

Index: test/mjsunit/es6/regress/regress-4585.js
diff --git a/test/mjsunit/harmony/regress/regress-4585.js b/test/mjsunit/es6/regress/regress-4585.js
similarity index 94%
rename from test/mjsunit/harmony/regress/regress-4585.js
rename to test/mjsunit/es6/regress/regress-4585.js
index ada91c67ca48cd78dcbb2733d2c711fe20cf6405..8ded6464c965ab56a0c546ca98f39ba0ff115b62 100644
--- a/test/mjsunit/harmony/regress/regress-4585.js
+++ b/test/mjsunit/es6/regress/regress-4585.js
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --harmony-destructuring-bind
-
 assertThrows(`for(const { method() {} } = this) {}`, SyntaxError);
 assertThrows(`var { method() {} } = this;`, SyntaxError);
 assertThrows(`for(const { *method() {} } = this) {}`, SyntaxError);