Remove Page35 "crowd720_vp9.webm&seek" since not needed.

tools/perf/page_sets/tough_video_cases.py

 # Copyright 2014 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.
 from telemetry.page import page as page_module
 from telemetry import story
 
 _PAGE_TAGS_LIST = [
     # Audio codecs:
     'pcm',
     'mp3',
@@ skipping 354 matching lines @@
       url='file://tough_video_cases/video.html?src=crowd720_vp9.webm',
       page_set=page_set,
       tags=['vp9', 'video_only', 'normal_play'])
 
     self.add_browser_metrics = True
 
   def RunPageInteractions(self, action_runner):
     self.PlayAction(action_runner)
 
 
-class Page35(ToughVideoCasesPage):
-
-  def __init__(self, page_set):
-    super(Page35, self).__init__(
-      url='file://tough_video_cases/video.html?src=crowd720_vp9.webm&seek',
-      page_set=page_set,
-      tags=['vp9', 'video_only', 'seek'])
-
-    self.skip_basic_metrics = True
-
-  def RunPageInteractions(self, action_runner):
-    self.SeekBeforeAndAfterPlayhead(action_runner)
-
-
 class Page36(ToughVideoCasesPage):
 
   def __init__(self, page_set):
     super(Page36, self).__init__(
       url=('file://tough_video_cases/video.html?src='
            'smpte_3840x2160_60fps_vp9.webm&seek'),
       page_set=page_set,
       tags=['is_4k', 'vp9', 'video_only', 'seek'])
 
     self.add_browser_metrics = True
@@ skipping 33 matching lines @@
 
     # Seek tests:
     self.AddStory(Page19(self))
     self.AddStory(Page20(self))
     self.AddStory(Page23(self))
     self.AddStory(Page24(self))
     self.AddStory(Page25(self))
     self.AddStory(Page26(self))
     self.AddStory(Page31(self))
     self.AddStory(Page33(self))
-    self.AddStory(Page35(self))
     self.AddStory(Page36(self))