Remove PPB_Var interface's scripting functionality.

ppapi/ppapi_cpp.gypi

 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       'target_name': 'ppapi_c',
       'type': 'none',
       'all_dependent_settings': {
@@ skipping 13 matching lines @@
         'c/pp_rect.h',
         'c/pp_resource.h',
         'c/pp_size.h',
         'c/pp_stdint.h',
         'c/pp_time.h',
         'c/pp_var.h',
         'c/ppb.h',
         'c/ppb_audio.h',
         'c/ppb_audio_config.h',
         'c/ppb_core.h',
-        'c/ppb_class.h',
         'c/ppb_graphics_2d.h',
         'c/ppb_image_data.h',
         'c/ppb_instance.h',
         'c/ppb_url_loader.h',
         'c/ppb_url_request_info.h',
         'c/ppb_url_response_info.h',
         'c/ppb_var.h',
         'c/ppp.h',
         'c/ppp_instance.h',
 
@@ skipping 200 matching lines @@
         }],
         ['OS=="mac"', {
           'xcode_settings': {
             'WARNING_CFLAGS': ['-Wextra', '-pedantic'],
            },
         }]
       ],
     },
   ],
 }