Hi pbedford83,
If you want to remove the summary excerpt altogether, you’ll want to change the output template.
Here’s a related post that describes how to add a featured image. In your case, instead of adding the featured image code, you would delete the code for the summary (excerpt).
First, copy the template as discussed in the FAQ:
How do I change the output template
Simply copy the posts_loop_template.php to your theme directory and make changes as necessary.
You can even rename it – but make sure to indicate that in the shortcode using the template=’template_name.php’.
You can even use different templates for each shortcode if you like.
Make sure to add the template=’posts_loop_template.php’ attribute to your shortcode even if you don’t change the name.
Next, find the following code and delete it.
<!-- This is the output of the EXCERPT -->
<div class="entry-summary">
<?php the_excerpt(); ?>
</div>
If you want to keep the summary, but make it shorter, you can add some custom code to the functions.php file in your theme to filter the excerpt length. Here’s information about that in the WordPress Codex.
I hope this helps! ??