<div id="LayoutBanner" class="row teal">
    <div class="col s12 m9">
        <h3 class="header center-on-small-only">{% if page.title %}{{ page.title }}{% else %}Web Dev Blog{% endif %}</h3>
    </div>
</div>

<div id="LayoutBanner" class="row teal">
    <div class="col s12 m9">
        <h3 class="header center-on-small-only">{% if page.title %}{{ page.title }}{% endif %}</h3>
    </div>
</div>

Remove "Web Dev Blog" title
Remove "Web Dev Blog" title