GuiPrefs: Fix L10n.

Appears to have been missed during the transition

pyfpdb/GuiPrefs.py

@@ -15,6 +15,9 @@
 #along with this program. If not, see <http://www.gnu.org/licenses/>.
 #In the "official" distribution you can find the license in agpl-3.0.txt.
 
+import L10n
+_ = L10n.get_translation()
+
 import xml.dom.minidom
 from xml.dom.minidom import Node
 
@@ -23,18 +26,6 @@ pygtk.require('2.0')
 import gtk
 import gobject
 
-import locale
-lang=locale.getdefaultlocale()[0][0:2]
-if lang=="en":
-    def _(string): return string
-else:
-    import gettext
-    try:
-        trans = gettext.translation("fpdb", localedir="locale", languages=[lang])
-        trans.install()
-    except IOError:
-        def _(string): return string
-
 import Configuration
 
 rewrite = { 'general' : 'General',                   'supported_databases' : 'Databases'