telemetry: deprecate GetModernizedTestName which is not used anymore

tools/telemetry/telemetry/page/page_test_runner.py

Index: tools/telemetry/telemetry/page/page_test_runner.py
diff --git a/tools/telemetry/telemetry/page/page_test_runner.py b/tools/telemetry/telemetry/page/page_test_runner.py
index 33ca9552fe0fe6b25e12c10d4433c18eea6f2a7a..9352139810015278ee9a99d4bb2ef4638c51bcc6 100644
--- a/tools/telemetry/telemetry/page/page_test_runner.py
+++ b/tools/telemetry/telemetry/page/page_test_runner.py
@@ -62,20 +62,12 @@ class PageTestRunner(object):
       test_name or None
     """
     test_name = None
-    for arg in [self.GetModernizedTestName(a) for a in args]:
+    for arg in args:
       if arg in test_constructors:
         test_name = arg
 
     return test_name
 
-  def GetModernizedTestName(self, arg):
-    """Sometimes tests change names but buildbots keep calling the old name.
-
-    If arg matches an old test name, return the new test name instead.
-    Otherwise, return the arg.
-    """
-    return arg
-
   def GetPageSet(self, test, env):
     ps = test.CreatePageSet(self._args, self._options)
     if ps: