If you no longer want a hyperlink category to be available or if you created the wrong hyperlink category by mistake, then you have the option to delete it:
In this article, you will learn how to delete a hyperlink category:
OBS:
If a hyperlink category is in use or has been used, it cannot be deleted.
In this article, you can read how to hide a hyperlink category:
Deleting hyperlink categories
In the menu, go to Settings 
> Resource categories
Go to hyperlink categories
Thereafter, click on Delete hyperlink category for the hyperlink category you wish to delete 
You can use the search function if you cannot find the hyperlink category.
Click on Delete to finish the process
