How to delete the "Accounts" address book

[Cisco30]

hi
you can isolate users so that they cannot see each other, look at this post it could help you

How to hide users from each other?

Hello, I would like to know if it is possible to hide users from each other (For example, if I am on X’s profile, I do not see who the other users are. Same for Y’s profile). If this is not possible, is there a way to remove the “contacts” (top left) and “search” tab so that you cannot find other users? Thank you in advance for your answers. Sincerely.