[es6] Remove harmony-classes flag

test/mjsunit/harmony/rest-params.js

 // Copyright 2014 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-rest-parameters --harmony-classes
+// Flags: --harmony-rest-parameters
 
 (function testRestIndex() {
   assertEquals(5, (function(...args) { return args.length; })(1,2,3,4,5));
   assertEquals(4, (function(a, ...args) { return args.length; })(1,2,3,4,5));
   assertEquals(3, (function(a, b, ...args) { return args.length; })(1,2,3,4,5));
   assertEquals(2, (function(a, b, c, ...args) {
                       return args.length; })(1,2,3,4,5));
   assertEquals(1, (function(a, b, c, d, ...args) {
                       return args.length; })(1,2,3,4,5));
   assertEquals(0, (function(a, b, c, d, e, ...args) {
@@ skipping 189 matching lines @@
         args.push(arguments[i]);
       }
       assertEquals(args, b);
     }
   }
 
   var c = new Child(1, 2, 3);
   assertEquals([1, 2, 3], c.child);
   assertEquals([1, 2, 3], c.base);
 })();