Revert of Track telemetry benchmark cycle time

telemetry/telemetry/testing/fakes/__init__.py

Index: telemetry/telemetry/testing/fakes/__init__.py
diff --git a/telemetry/telemetry/testing/fakes/__init__.py b/telemetry/telemetry/testing/fakes/__init__.py
index 97c63604717d8cda7e22f659a3991fb00a68a3b3..71d1d2afb6ba99a207af3ffd1f13c479295b8efb 100644
--- a/telemetry/telemetry/testing/fakes/__init__.py
+++ b/telemetry/telemetry/testing/fakes/__init__.py
@@ -56,13 +56,13 @@
     return False
 
   def GetDeviceTypeName(self):
-    return 'FakeDevice'
+    raise NotImplementedError
 
   def GetArchName(self):
     raise NotImplementedError
 
   def GetOSName(self):
-    return 'FakeOS'
+    raise NotImplementedError
 
   def GetOSVersionName(self):
     raise NotImplementedError
@@ -301,9 +301,6 @@
 
   def ClearStateIfNeeded(self):
     pass
-
-  def IsChromeTracingSupported(self):
-    return True
 
 
 class _FakeNetworkController(object):