Remove english i18n files/settings

config/application.rb

@@ -18,6 +18,7 @@ module Projekteuler
 
     # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
+    config.i18n.available_locales = :de
     config.i18n.default_locale = :de
   end
 end