Well I figured out how to remove the sticky menu bar by myself, so here's what I did:
this was in my header:
<div class="navbar navbar-default navbar-fixed-top" role="navigation" data-spy="affix">
So I removed the 'data-spy="affix"' and the 'navbar-fixed-top' class.
I am also remembering that I copied the header out of a different site, as I wanted to use their header style, so that is where the sticky menu bar came from.
When I had asked this question to begin with, I had thought that maybe there was just a checkbox somewhere that I wasn't seeing that would turn it on or off. Didn't realize it had to do with theme settings. But either way, that is how I went about this.