Remove visual noise from editeng

Change-Id: Id7582119a5628cb7f54347678580ce7e47f6d703
Reviewed-on: https://gerrit.libreoffice.org/8255
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>