remove last references to old alt buttons (bug 1079738)

![](http://f.cl.ly/items/2O430e3L2K1v3d0L3A3l/Image%202014-11-17%20at%203.09.16%20PM.png)
Probably. We never use `notification.confirmation()` in fireplace but it's better than yellow. I could make it red via class 'cancel' I suppose.