Disable the social menu from the GNOME panel with this add-on for GNOME Shell
Antisocial Menu is a GNOME Shell extension that will remove all the elements of the social menu from the GNOME panel, including online accounts, the notification switch, the status icon and the status chooser. It adds a Quit Button functionality instead.
To install this extension you must have GNOME Shell installed or Cinnamon. However, keep in mind that it has not been tested with Cinnamon.