Hi mbhrexus,
Yes you may delete the code but create a child theme and then only customize the code. Otherwise while updating to our new version all your customized code will be lost and need to do the same thing again on each update.
We have spend lots of time and efforts to develop this theme available free for you.
Could you also please help us rating this theme in WordPress Repository.
https://wordpress.org/support/view/theme-reviews/interface
We really appreciate your rating.
Thank you!