refine tests

tests/jerry/keyword.js

@@ -1,26 +0,0 @@
-// Copyright 2014 Samsung Electronics Co., Ltd.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// tokenize
-break do instanceof typeof
-case else new var
-catch finally return void
-continue for switch while
-debugger function this with
-default if throw
-delete in try
-class enum extends super
-const export import
-implements let private public yield
-interface package protected static