Remove --harmony-* flags for new Object static methods

test/mjsunit/es8/object-entries.js

 // 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: --harmony-object-values-entries
 // Flags: --allow-natives-syntax
 
 function TestMeta() {
   assertEquals(1, Object.entries.length);
   assertEquals(Function.prototype, Object.getPrototypeOf(Object.entries));
   assertEquals("entries", Object.entries.name);
 
   var descriptor = Object.getOwnPropertyDescriptor(Object, "entries");
   assertTrue(descriptor.writable);
   assertFalse(descriptor.enumerable);
@@ skipping 290 matching lines @@
 
   for (let [kind, [object, expected]] of Object.entries(element_kinds)) {
     let result1 = Object.entries(object);
     assertEquals(expected, result1, `fast Object.entries() with ${kind}`);
 
     let proxy = new Proxy(object, {});
     let result2 = Object.entries(proxy);
     assertEquals(result1, result2, `slow Object.entries() with ${kind}`);
   }
 })();