Out of the box, WordPress will automatically display a comment form (usually on Single Post pages) which contains the following fields:
Comment text area
Name
Email
Website
Checkbox for saving the name, email, and website in the browser's local storage
The same list of fields is going to be used by Divi's Comments Module.
Remove the website field from the Comments module using custom PHP code
Go to Plugins → Add new and using the search form, and search for Code Snippets plugin
Install and Activate the Code Snippets plugin
Go to WordPress Dashboard → Snippets → Add new and create a new PHP snippet
Give it a title
Copy/paste the following PHP code:
add_filter('comment_form_default_fields', 'divi_remove_website_field');
function divi_remove_website_field($fields) {
if(isset($fields['url']))
unset($fields['url']);
return $fields;
}
The result of the above PHP snippet can be seen in the screenshot below:
Note: If you use a child theme, the PHP code can be added to the functions.php file at the end.
Remove the Website Field from the Comments module using a 3rd party plugin
Go to WordPress Dashboard → Plugins → Add new
Search for Comment Link Remove and Other Comment Tools
Install and Activate the plugin
Open the plugin's settings by clicking on the sidebar item called QC CLR Settings
Enable Remove WEBSITE Field from Comment Form option