How can i hide floppy drive and virtual disks on the clients

[X-Dimension]

Hi!
Our Edubuntu LTSP server runs on VMWare ESXi and although either the
server itself or the virtual machine or the clients have a floppy drive,
a floppy is always shown in Gnome.
In both /etc/fstab and /opt/ltsp/i386/etc/fstab are no floppy drives 
listed.
How can i hide this non existing floppy drive on the clients?

Also Gnome shows the virtual disks from the ESXi server on the clients.
How can i disable this?

Thx