The Private Files area within the Sliding Navigation Drawer is a personal repository for individual user accounts on the site, this means that users can upload files for only themselves to view, download or delete.
Private Files Button
This area can be removed from appearing within the Sliding Navigation Drawer as administrators cannot see anything uploaded here by users, so there is a possibility of the function being abused by users
Removing the "Private Files" Button
To remove the "Private Files" button please follow the steps very carefully because permissions will need to be altered and a mistake can cause problems:
Head to "Site Administration > Users > Permissions > Define Roles
This will have now changed the ability for standard users to view the "Private Files" area within the Sliding Navigation Drawer, please repeat the steps if you also need to hide this area from your Managers with the custom role used at the bottom of the role list called Reporting Access/Hierarchy Manager.