Hi Stefan,
You just go to the theme folder -> library -> structure -> content-extension.php
Remove this content from this page.
<header class="entry-header">
<h1 class="entry-title">
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute();?>"><?php the_title(); ?></a>
</h1><!-- .entry-title -->
</header>
We recommended not to change the code because if you change the code then while updating to our new version all your customisation code will be lost. So better make child theme and first unhook the functions and the edit the code.
http://codex.wordpress.org/Child_Themes
Hope this may help you
Thank you!
.
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