Remove flags for spread calls and arrays

test/mjsunit/es6/spread-call-new.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-spread-calls
-
 (function testNonConstructorStrict() {
   "use strict";
   assertThrows(function() {
     return new Math.cos(...[1,2,3]);
   }, TypeError);
 
   assertThrows(function() {
     var CallNull = null;
     return new CallNull(...[1,2,3]);
   }, TypeError);
@@ skipping 36 matching lines @@
   }
   TestClass.prototype.method = function() {
     return this.args;
   }
 
   assertInstanceof(new TestClass(...[1, 2, 3]), TestClass);
   assertEquals([1, 2, 3], (new TestClass(...[1, 2, 3])).method());
   assertEquals([1, 2, 3], (new TestClass(...[1, 2, 3])).args);
   assertTrue((new TestClass(...[1, 2, 3])).wasCalled);
 })();