Remove "client_version" test from chromium

tools/chrome_proxy/integration_tests/chrome_proxy_benchmark.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 common.chrome_proxy_benchmark import ChromeProxyBenchmark
 from integration_tests import chrome_proxy_measurements as measurements
 from integration_tests import chrome_proxy_pagesets as pagesets
 from telemetry import benchmark
 
 DESKTOP_PLATFORMS = ['mac', 'linux', 'win', 'chromeos']
 WEBVIEW_PLATFORMS = ['android-webview', 'android-webview-shell']
 
-class ChromeProxyClientVersion(ChromeProxyBenchmark):
-  tag = 'client_version'
-  test = measurements.ChromeProxyClientVersion
-  page_set = pagesets.SyntheticStorySet
-
-  @classmethod
-  def Name(cls):
-    return 'chrome_proxy_benchmark.client_version.synthetic'
-
-
 class ChromeProxyClientType(ChromeProxyBenchmark):
   tag = 'client_type'
   test = measurements.ChromeProxyClientType
   page_set = pagesets.ClientTypeStorySet
 
   @classmethod
   def Name(cls):
     return 'chrome_proxy_benchmark.client_type.client_type'
 
 
@@ skipping 255 matching lines @@
   """Check that audio is similar to original video."""
 
   tag = 'video'
   test = measurements.ChromeProxyInstrumentedVideoValidation
   page_set = pagesets.VideoAudioStorySet
 
   @classmethod
   def Name(cls):
     return 'chrome_proxy_benchmark.video.audio'