[es6] remove --harmony-templates flag

test/mjsunit/es6/string-raw.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-templates
-
 (function testStringRawArity() {
   assertEquals(1, String.raw.length);
 })();
 
 
 (function testStringRawCallSiteToObject() {
   assertThrows("String.raw()", TypeError);
 })();
 
 
@@ skipping 232 matching lines @@
   });
   [1, 3, 5].forEach(function(v, i) {
     Object.defineProperty(callSiteObj.raw, i, {
       get: function() { order.push("raw" + v); return v; }
     });
   });
 
   assertEquals("12345", String.raw(callSiteObj, arg(2), arg(4), arg(6)));
   assertEquals(["length", "raw1", "arg2", "raw3", "arg4", "raw5"], order);
 })();