How to remove both the Search Button AND the Login / Register Button from menu

I need to remove both the little search icon button and the Login / Register button from the overhead menu in the July 2016 DT child theme. For all pages.

I’ve tracked down the CSS (below), which is a <div> within
<div class=”container-fluid”>
but now I don’t know what to do with it. I’ve tried removing the whole <div> and other things in style.css for the child theme, but nothing works so far.
Thanks

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<div class=”pull-right” style=”margin-top:5px;”>

<i class=”fa fa-search”></i>

Login / Register

</div>
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