"Stealth Wards Purchased" is still a stat in online Match History

I'm not sure if this has been brought up before (sorry if it has) as I don't browse the boards all too often, but I was looking up some stats after a game last night and noticed that "Stealth Wards Purchased" was still occupying a row under "Wards" in the online stats.

Just figured I'd point this out since you can't buy green wards anymore.

I'm not sure how to post a picture but if you go to any of your games in the "Match History" tab on the client and click "View on the web", then navigate to the "Statistics" tab, you should be able to see what I'm talking about.

Also my apologies if I posted this in the wrong discussion area. Like I said above I am not a frequent poster here and "Miscellaneous" seemed like the best option.