Yes, You can Delete the fonts by following the below steps.
Login to Backend
Navigate to the Product Configurator ➤ Manage Fonts, you will get the list of the Fonts.
You can view list of fonts, navigate to action column.
To delete the Font for the front-end configurator here click on the Edit button on the Action column.
After that, you will be redirected to the Edit Font page here you can see the selected font details.
Here at the top of the page, you will to see the Delete button Click on it to remove the fonts.
And also You can Delete multiple fonts at once from blon the manage fonts listing page, by clicking on the check boxes of those Fonts, also you can select all the fonts by clicking on the Select All drop-down option.
Now, navigate to the Action drop-down menu, on the left side of the page. Select the Delete option accordingly to delete the selected fonts.
By clicking on the delete option you will get the Conformation pop-up and click on the “OK ” button.