Revert of telemetry: Clean up SurfaceFlinger statistics

tools/telemetry/telemetry/timeline/surface_flinger_importer.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.timeline import importer
-from telemetry.timeline import surface_flinger_timeline_data
-
-class SurfaceFlingerTimelineImporter(importer.TimelineImporter):
-  def __init__(self, model, timeline_data):
-    super(SurfaceFlingerTimelineImporter, self).__init__(
-        model, timeline_data, import_priority=2)
-    self._events = timeline_data.EventData()
-    self._surface_flinger_process = None
-
-  @staticmethod
-  def CanImport(timeline_data):
-    if isinstance(timeline_data,
-                  surface_flinger_timeline_data.SurfaceFlingerTimelineData):
-      return True
-
-    return False
-
-  def ImportEvents(self):
-    for event in self._events:
-      self._surface_flinger_process = self._model.GetOrCreateProcess(
-          event['pid'])
-      self._surface_flinger_process.name = 'SurfaceFlinger'
-      thread = self._surface_flinger_process.GetOrCreateThread(event['tid'])
-      thread.BeginSlice(event['cat'],
-                        event['name'],
-                        event['ts'],
-                        args=event.get('args'))
-      thread.EndSlice(event['ts'])
-
-  def FinalizeImport(self):
-    '''Called by the Model after all other importers have imported their
-    events.'''
-    self._model.UpdateBounds()
-    self._model.surface_flinger_process = self._surface_flinger_process