Google a retras unitatile video Adsense.
"As you may know, we frequently review our products and features to ensure their effectiveness. After reviewing our AdSense video units feature, which allows you to show YouTube content and ads on your pages, we've found that it hasn't had the impact we had hoped for. As a result, we've decided to retire this feature at the end of April so we can focus our resources on other opportunities to help publishers earn from their sites."