Simplify code for VPN entries in system menu

ash/system/network/network_state_list_detailed_view.h

Index: ash/system/network/network_state_list_detailed_view.h
diff --git a/ash/system/network/network_state_list_detailed_view.h b/ash/system/network/network_state_list_detailed_view.h
index 50e0b4170cfc699974c6382c6e566a1d2419f273..a4d479af32351814a8dacd4142bf60046e35952f 100644
--- a/ash/system/network/network_state_list_detailed_view.h
+++ b/ash/system/network/network_state_list_detailed_view.h
@@ -46,9 +46,6 @@ class NetworkStateListDetailedView
   // Manager properties (e.g. technology state) have changed.
   void Update();
 
-  // Called when the user clicks on an entry representing a network in the list.
-  void OnNetworkEntryClicked(views::View* sender);
-
   void RelayoutScrollList();
 
  private: