This guide will show you how to remove a Pin Mapping for a site, using the Enterprise Manager admin tools.
How to delete a Pin Mapping
In the Site Editor, under the Pin Mapping tab, click on the Edit Pins button at the top of the main table. If you're unsure on how to locate the Pin Mapping feature, read the guide here before continuing.
Click the Delete checkbox for the site you wish to delete. This won't delete the Pin Mapping immediately, as you can still make other adjustments to other Pin Mappings in this process.
Once you're confident, click Save Changes to submit those new Pin Mappings.