The template section on the front end lets your customers apply the various templates to the products and they don’t have to design the product from scratch. In this article it is mentioned how you can delete a template.
Login to Backend
Navigate to Product Designer -> Manage Template.
You will land on the Manage Templates page. Here you will have to select the particular template that you want to delete. You can also select the listed templates in bulk by clicking on the Select All button.
Now, click on the Action drop down where the Delete option is displayed, from here you can delete the selected templates.
