[Ash] Remove pre-MD code paths from HoverHighlightView

ash/common/system/chromeos/network/network_info.h

Index: ash/common/system/chromeos/network/network_info.h
diff --git a/ash/common/system/chromeos/network/network_info.h b/ash/common/system/chromeos/network/network_info.h
index 58e1f33fe2cab6be219f1f19da1dd138532ad278..d545a22cb1b6ff6716305aa95861205fa839e6a0 100644
--- a/ash/common/system/chromeos/network/network_info.h
+++ b/ash/common/system/chromeos/network/network_info.h
@@ -18,6 +18,7 @@ namespace ash {
 
 // Includes information necessary about a network for displaying the appropriate
 // UI to the user.
+// TODO(tdanderson): Remove the |highlight| member. See crbug.com/708190.

[Evan Stade, 2017/04/04 17:18:18]

why add a TODO instead of removing right away? Is there some complexity to
removing it?

[tdanderson, 2017/04/04 18:45:06]

It looked like it is still used in network ordering logic. Changing that seems
out of scope for this CL and has the potential to introduce an unrelated
regression since it's not 100% a matter of just deleting dead code. For those
reasons I think it is better to land in a separate CL.

 struct NetworkInfo {
   enum class Type { UNKNOWN, WIFI, TETHER, CELLULAR };