How to stop the Try the new Safari nag

How do I get rid of this Safari nag “Try the new Safari”?

I use the Chrome browser and don't like to be told what I can and can't do on my own computer, one of the main reasons I don't use Windows. Now I have a persistent nag from Apple in the upper right corner of my screen giving me a choice of tying the new Safari either now or later, but not a choice to do neither.