Translate strings-preferences.xml in fr

94% of minimum 80% translated source file: 'strings-preferences.xml'
on 'fr'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

Author: transifex-integration[bot]

app/src/main/res/values-fr/strings-preferences.xml

@@ -85,7 +85,6 @@
   <string name="prefs_osm_clear_oauth_data_summary">Force OSMTracker à se ré-authentifier sur OpenStreetMap</string>
   <string name="prefs_osm_clear_oauth_data_dialog">Vous devrez vous reconnecter à OpenStreetMap. Êtes-vous sûr ?</string>
   <string name="prefs_map_tile">Fournisseur de tuiles de carte</string>
-  <string name="prefs_map_tile_summary"></string>
   <string-array name="prefs_compass_heading_keys">
     <item>Aucun</item>
     <item>En commentaire</item>