Remove unneeded files from third_party/polymer.

third_party/polymer/v1_0/create_components_summary.py

 # Copyright 2016 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.
 
 import os
 import json
 
-COMPONENTS_DIR = 'components-chromium'
+COMPONENTS_DIR = 'components'
 COMPONENT_SUMMARY =\
 """Name: %(name)s
 Version: %(version)s
 Repository: %(repository)s
 Tag: %(tag)s
 Revision: %(revision)s
 Tree link: %(tree)s
 """
 
 for entry in sorted(os.listdir(COMPONENTS_DIR)):
   component_path = os.path.join(COMPONENTS_DIR, entry)
   if not os.path.isdir(component_path):
     continue
   bower_path = os.path.join(component_path, '.bower.json')
   if not os.path.isfile(bower_path):
     raise Exception('%s is not a file.' % bower_path)
   with open(bower_path) as stream:
     info = json.load(stream)
   repository = info['_source']
   tree = 'https%s/tree/%s' % (repository[3:-4], info['_resolution']['tag'])
   print COMPONENT_SUMMARY % {
     'name': info['name'],
     'version': info['version'],
     'repository': repository,
     'tag': info['_resolution']['tag'],
     'revision': info['_resolution']['commit'],
     'tree': tree
   }