static/frontend/styleguide: fix styleguide title class
The class removed is already applied one level up in
the DOM tree.
Trust: Jamal Carvalho
aria-label="Link to Go Homepage">
<img height="78" width="207" src="/static/shared/logo/go-blue.svg" alt="Go">
</a>
- <h1 class="go-Main-headerTitle">Style Guide</h1>
+ <h1>Style Guide</h1>
</div>
<div class="go-Main-headerDetails">
<fieldset class="go-Main-headerDetailItem go-Label go-Label--inline MainHeader-toggle">
