Remove visual noise from i18nlangtag

Change-Id: I82680dea7e6d182d4c8047fce60d2cae09d29891
Reviewed-on: https://gerrit.libreoffice.org/8268
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>