Ok - here's where I am at this point. I made a copy of the functions.php file from my remote site and copied it to my local site. I opened it in a text editing and deleted the code that I added yesterday. I then uploaded that back to my remote site. I have not reactivated the premium theme on my site for fear that it will break again.
I have a child theme set up and a style.css folder in the child directory:
Here is what I have in the style.css sheet
/*
Theme Name: Virtue Child Theme
Theme URI: http://themes.kadencethemes.com/virtue/
Description: Child Theme for Virtue
Author: Kadence Themes
Author URI: http://kadencethemes.com/
Template: virtue_premium
Version: 1.0
*/
@import url('../virtue_premium/style.css');