[Ash] Remove pre-MD code paths from HoverHighlightView

ash/common/system/chromeos/network/network_state_list_detailed_view.cc

Index: ash/common/system/chromeos/network/network_state_list_detailed_view.cc
diff --git a/ash/common/system/chromeos/network/network_state_list_detailed_view.cc b/ash/common/system/chromeos/network/network_state_list_detailed_view.cc
index d35ba98d8b5f6673bf9132a8ced54ee6c3434062..0334fe3f00924fdd34ccded94b270fbe49848bc9 100644
--- a/ash/common/system/chromeos/network/network_state_list_detailed_view.cc
+++ b/ash/common/system/chromeos/network/network_state_list_detailed_view.cc
@@ -498,7 +498,7 @@ views::View* NetworkStateListDetailedView::CreateViewForNetwork(
   else if (info.connecting)
     SetupConnectingItem(container, info.label, info.image);
   else
-    container->AddIconAndLabel(info.image, info.label, info.highlight);
+    container->AddIconAndLabel(info.image, info.label);
   container->set_tooltip(info.tooltip);
   views::View* controlled_icon = CreateControlledByExtensionView(info);
   if (controlled_icon)
@@ -521,7 +521,7 @@ void NetworkStateListDetailedView::UpdateViewForNetwork(
   else if (info.connecting)
     SetupConnectingItem(container, info.label, info.image);
   else
-    container->AddIconAndLabel(info.image, info.label, info.highlight);
+    container->AddIconAndLabel(info.image, info.label);
   views::View* controlled_icon = CreateControlledByExtensionView(info);
   container->set_tooltip(info.tooltip);
   if (controlled_icon)