Remove usages of Timeline commands in telemetry

tools/telemetry/telemetry/core/web_contents.py

Index: tools/telemetry/telemetry/core/web_contents.py
diff --git a/tools/telemetry/telemetry/core/web_contents.py b/tools/telemetry/telemetry/core/web_contents.py
index 05475c5c6d5e87013b02e53d90b3309531f8b5b2..fe790ad18fcd6b8b13d8b6907df902bcdb4882da 100644
--- a/tools/telemetry/telemetry/core/web_contents.py
+++ b/tools/telemetry/telemetry/core/web_contents.py
@@ -167,12 +167,8 @@ class WebContents(object):
   def timeline_model(self):
     return self._inspector_backend.timeline_model
 
-  def StartTimelineRecording(self, options=None):
-    self._inspector_backend.StartTimelineRecording(options)
-
-  @property
-  def is_timeline_recording_running(self):
-    return self._inspector_backend.is_timeline_recording_running
+  def StartTimelineRecording(self):
+    self._inspector_backend.StartTimelineRecording()
 
   def StopTimelineRecording(self):
     self._inspector_backend.StopTimelineRecording()