Remove destructuring and default arguments runtime flags

test/mjsunit/harmony/destructuring-parameters-literalcount.js

-// 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-destructuring-bind
-// Flags: --allow-natives-syntax
-
-
-var t1 = [1];
-var t2 = [2];
-var t3 = [3];
-var t4 = [4];
-var t5 = [5];
-function g({x = {a:10,b:20}},
-           {y = [1,2,3],
-            n = [],
-            p = /abc/}) {
-  assertSame(10, x.a);
-  assertSame(20, x.b);
-  assertSame(2, y[1]);
-  assertSame(0, n.length);
-  assertTrue(p.test("abc"));
-}
-g({},{});
-%OptimizeFunctionOnNextCall(g);
-g({},{});
-
-
-var h = ({x = {a:10,b:20}},
-         {y = [1,2,3],
-          n = [],
-          p = /abc/ }) => {
-    assertSame(10, x.a);
-    assertSame(20, x.b);
-    assertSame(2, y[1]);
-    assertSame(0, n.length);
-    assertTrue(p.test("abc"));
-  };
-h({},{});
-%OptimizeFunctionOnNextCall(h);
-h({},{});