Remove visual noise from sot

Change-Id: I731691d4cac8567938407a514a25e13b2baa7958
Reviewed-on: https://gerrit.libreoffice.org/8314
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>