Remove "code" section in mail

Hi guys,

I changed some text in the mail. The last thing i want to remove the whole “code” section. I don’t want to see what has changed on the page.

I have tried somethings in “class.email-post-changes.php” but i didn’t find the right code part, hopeful you guys can help me!

https://wordpress.org/plugins/email-post-changes/