Remove support for legacy wpr_server in Telemetry

telemetry/telemetry/core/network_controller.py

Index: telemetry/telemetry/core/network_controller.py
diff --git a/telemetry/telemetry/core/network_controller.py b/telemetry/telemetry/core/network_controller.py
index c1e0412c409e8f8e9f3e8c249649e87f9a207dcc..93b4454bba9c574f6d34341ef6ac69b635e12bd0 100644
--- a/telemetry/telemetry/core/network_controller.py
+++ b/telemetry/telemetry/core/network_controller.py
@@ -20,8 +20,8 @@ class NetworkController(object):
   def InitializeIfNeeded(self, use_live_traffic=False):
     self._network_controller_backend.InitializeIfNeeded(use_live_traffic)
 
-  def Open(self, wpr_mode, extra_wpr_args, use_wpr_go=False):
-    self._network_controller_backend.Open(wpr_mode, extra_wpr_args, use_wpr_go)
+  def Open(self, wpr_mode, extra_wpr_args):
+    self._network_controller_backend.Open(wpr_mode, extra_wpr_args)
 
   def UpdateTrafficSettings(self,
                             round_trip_latency_ms=None,