How do I get rid of this text above my toolbar? I'm not sure what key I accidentally hit, but now I have this text above my toolbar (the one with "file, render, window, help" on it). Please refer to the attached image so that you can see what I'm talking about.

Googling yielded no results so that's why I'm here. How do I get rid of it?

Thanks,
HS
just pull up the info window...

Place the cursor at the line where the 3D window and the Info window meet. The cursor should change to a double arrow. 

Pull the info window up.



Note, both above and below that header you get a "double arrow":

you don't have to drag the upper separation line 



but the bottom line as shown below: