[tools/perf] Do not set skip_waits for story in benchmark

tools/perf/benchmarks/benchmark_smoke_unittest.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.
 
 """Run the first page of one benchmark for every module.
 
 Only benchmarks that have a composable measurement are included.
 Ideally this test would be comprehensive, however, running one page
 of every benchmark would run impractically long.
 """
@@ skipping 36 matching lines @@
     # Only measure a single page so that this test cycles reasonably quickly.
     benchmark.options['pageset_repeat'] = 1
     benchmark.options['page_repeat'] = 1
 
     class SinglePageBenchmark(benchmark):  # pylint: disable=no-init
 
       def CreateStorySet(self, options):
         # pylint: disable=super-on-old-class
         story_set = super(SinglePageBenchmark, self).CreateStorySet(options)
         for story in story_set.stories:
-          story.skip_waits = True
           story_set.stories = [story]
           break
         return story_set
 
     # Set the benchmark's default arguments.
     options = options_for_unittests.GetCopy()
     options.output_format = 'none'
     parser = options.CreateParser()
 
     benchmark.AddCommandLineArgs(parser)
@@ skipping 88 matching lines @@
 
     # TODO(bashi): Remove once crrev.com/1266833004 is landed.
     if benchmark.Name() == 'memory.blink_memory_mobile':
       method._disabled_strings.add('android')
 
     setattr(BenchmarkSmokeTest, benchmark.Name(), method)
 
     suite.addTest(BenchmarkSmokeTest(benchmark.Name()))
 
   return suite