instead of trying to share the css::i18n namespace, which is just very
confusing and should be left to actual UNO artifacts

Change-Id: I2f5c36bf1af9a2a98c4f997dd450d015e75ed3f6
Reviewed-on: https://gerrit.libreoffice.org/43079Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>