Remove a Folder
You can permanently remove a custom folder, but you cannot remove a folder provided with the stock Catalog.
Removing a custom folder from the Catalog also permanently removes all of the child folders and learning assets in the folder. If the folder's contents include custom assets that are not located elsewhere in the Catalog, this permanently removes them from the site. For this reason, before removing a folder, carefully examine its contents and, if necessary, copy any custom assets to a different folder.
To remove a custom folder