Revert of [Telemetry] Introduce shared_user_story_state for real.

tools/telemetry/telemetry/user_story/user_story_set.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 import user_story as user_story_module
 
 
 class UserStorySet(object):
   def __init__(self):
     self.user_stories = []
@@ skipping 16 matching lines @@
     """ Return a string explaining in human-understandable terms what this
     user story represents.
     Note that this should be a classmethod so benchmark_runner script can
     display user stories' names along their descriptions in the list commmand.
     """
     if cls.__doc__:
       return cls.__doc__.splitlines()[0]
     else:
       return ''
 
-  def ShuffleAndFilterUserStorySet(self, finder_options):
-    pass
-
   def __iter__(self):
     return self.user_stories.__iter__()
 
   def __len__(self):
     return len(self.user_stories)
 
   def __getitem__(self, key):
     return self.user_stories[key]
 
   def __setitem__(self, key, value):
     self.user_stories[key] = value