[Telemetry + tools/perf] Modify the pylint disable message to use symbolic name

tools/telemetry/telemetry/internal/results/page_test_results.py

Index: tools/telemetry/telemetry/internal/results/page_test_results.py
diff --git a/tools/telemetry/telemetry/internal/results/page_test_results.py b/tools/telemetry/telemetry/internal/results/page_test_results.py
index 3426e1cd3e4c4097ccbae436b0aeeb6eaf9132c8..b0e3806ae78ad71ed40e5a6f4acfb1c87e48438f 100644
--- a/tools/telemetry/telemetry/internal/results/page_test_results.py
+++ b/tools/telemetry/telemetry/internal/results/page_test_results.py
@@ -158,7 +158,7 @@ class PageTestResults(object):
     self._current_page_run = story_run.StoryRun(page)
     self._progress_reporter.WillRunPage(self)
 
-  def DidRunPage(self, page):  # pylint: disable=W0613
+  def DidRunPage(self, page):  # pylint: disable=unused-argument
     """
     Args:
       page: The current page under test.