[Telemetry] Make "discard_first_result" apply to user_stories too.

tools/perf/measurements/page_cycler.py

Index: tools/perf/measurements/page_cycler.py
diff --git a/tools/perf/measurements/page_cycler.py b/tools/perf/measurements/page_cycler.py
index ce1dc973efeac9a7c7546a51785b432dbbef7c91..e30544f0b5c6fdd28aff169d56a6bd85d1d5ded5 100644
--- a/tools/perf/measurements/page_cycler.py
+++ b/tools/perf/measurements/page_cycler.py
@@ -29,7 +29,7 @@ from telemetry.value import scalar
 
 
 class PageCycler(page_test.PageTest):
-  def __init__(self, page_repeat, pageset_repeat, cold_load_percent=50,
+  def __init__(self, page_repeat, pageset_repeat, cold_load_percent,
                report_speed_index=False, clear_cache_before_each_run=False):
     super(PageCycler, self).__init__(
         action_name_to_run='RunPageInteractions',
@@ -61,8 +61,6 @@ class PageCycler(page_test.PageTest):
           (int(pageset_repeat) - 1) * (100 - cold_load_percent) / 100)
       number_warm_runs = number_warm_pageset_runs * page_repeat
       self._cold_run_start_index = number_warm_runs + page_repeat
-      self._discard_first_result = (not cold_load_percent or
-                                    self._discard_first_result)
     else:
       self._cold_run_start_index = pageset_repeat * page_repeat