Removing Catalogs
To delete a Catalog:
1. Select a catalog in the Locations pane.
2. Select the catalog in the Browser pane.
3. Choose Remove Selected Items from the Browser menu. A warning dialog appears.
4. In the warning dialog, do one of the following:

Click
Cancel to cancel the delete operation.

Click
Move to Trash (Mac) or
Move to Recycle Bin (Windows) to remove aliases and associated files from disk.

Click
Remove to remove only the aliases from the catalog (and not the associated files on disk).
This operation cannot be undone.