Remove always-on --harmony-rest-parameters flag

test/mjsunit/es6/rest-params.js

Index: test/mjsunit/es6/rest-params.js
diff --git a/test/mjsunit/harmony/rest-params.js b/test/mjsunit/es6/rest-params.js
similarity index 99%
rename from test/mjsunit/harmony/rest-params.js
rename to test/mjsunit/es6/rest-params.js
index 6ceb87e3318fd725477e7679541311872314cdec..104add8c385ced97159b006a335895f2bd21396a 100644
--- a/test/mjsunit/harmony/rest-params.js
+++ b/test/mjsunit/es6/rest-params.js
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// 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));