How to get rid of Christmas Animation from mobile screen
Welcome to the club -- it's from the launcher, I've got that one as well since about that time. As GoLauncher also started spamming my notification area, I used LBE to forbid it going to the network, which worked fine -- but the XMas stuff stuck since then.

So, common issue: GoLauncher not going to the net (I forbid it, and you don't have network connection often). Solution: Enable network once again, update the GoLauncher. At least here, Santa seems to be gone.