Revert to config 5.1 style

Author: lmrodriguezr

config/application.rb

@@ -29,7 +29,5 @@ class Application < Rails::Application
     config.autoload_paths << Rails.root.join('app/middleware')
     config.eager_load_paths << Rails.root.join('lib')
     config.eager_load_paths << Rails.root.join('app/middleware')
-
-    config.middleware.use ::JsonSubdomainRedirector if Rails.env.production?
   end
 end

config/environments/production.rb

@@ -145,4 +145,5 @@
   # API Configuration
   config.api_only = ENV['RAILS_SEQCODE_API_ONLY'].present?
   config.api_server = 'https://api.seqco.de/v1'
+  config.middleware.use 'JsonSubdomainRedirector'
 end