b78d8815 removed unused values
from SfxFieldUnit enum. This broke the mapping between SfxFieldUnit
and FieldUnit. In fact SfxFieldUnit was redundant.

Change-Id: I13c7e7d708c6eeab0de192f4cd110b0a23989a31
Reviewed-on: https://gerrit.libreoffice.org/16150Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Andras Timar <andras.timar@collabora.com>
(cherry picked from commit 7f423067)