Remove visual noise from desktop

Change-Id: Ib8ca7794ce6f3e96ee3a9b2896b141635665552c
Reviewed-on: https://gerrit.libreoffice.org/8252
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>