Thanks for the question about removing the hamburger menu button. There’s no “mobile version” as this is a responsively designed site. The best way to handle this is to simply go into your Customization section (Administrator >Customization >Menus >Primary). Uncheck the Primary Menu from the Menu Locations section (as per the screenshot below)
Then when look at the site on a mobile device, you should see no hamburger button. Note that when you make change, it may still appear on your desktop, but when I tested it on the mobile device, there was nothing there.
I hope that helps! If you have any further questions or comments, please let us know.
Kindest regards,
Arnel C.