Bug 17809: Fix ER country appearing twice in fr-FR database files

Bug 17809: Fix ER country appearing twice in fr-FR database files

In installer/data/mysql/fr-FR/1-Obligatoire/authorised_values.sql, ER is defined twice, for "Erythrée" (correct one) and "Allemagne".

Test plan :
- Create a new database using fr-FR or import the sql file
- Look at authorised values COUNTRY
=> without patch you have ER / Allemange
=> with patch you have ER / ErythrÃe

NOTE: Allemange occurs twice as well, correctly with DE.
      This patch correctly removes the ER one.

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>