Remove visual noise from embeddedobj

Change-Id: I63ce6896e2f82160ffedb9f6123ca765f49698c5
Reviewed-on: https://gerrit.libreoffice.org/8256
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>