Hi Anne-
Thanks for reaching out! The easiest way to accomplish this is to simply hide the metadata using CSS.
Navigate to Customize > Advanced > Custom JS & CSS and paste this line into your Custom Theme CSS:
.entry-meta { display: none; }
That will hide it from your visitors, but it will still show up in the source code and be visible to search engines (this is usually good for SEO).
If you’re interested in modifying that PHP code, you’d need to set up a Child Theme for Resolve, and then override the pluggable function boldgrid_posted_on
in the Child Theme’s functions.php file.
If you’re interested in using a theme that gives you control over your Post Metadata without using any code, I recommend checking out our Crio WordPress Theme for Business, which includes controls to remove the Author Byline, Date, or customize the metadata to your preference.