You can delete a base, if required. Click on Manage link available in the left sidebar. The sub-links appear as below.
Click on All Bases option in Manage Base link. The list of all bases appears.
Locate the target base.
Note: When you delete a base, it is removed from everywhere in the backend system, such as in user information and elsewhere.
In Action column, click on Delete button. The backend system asks you to confirm if you want to delete this base. Click on Ok to confirm it.