Fix code style

config/environments/development.rb

@@ -62,15 +62,10 @@ Rails.application.configure do
   # routes, locales, etc. This feature depends on the listen gem.
   # config.file_watcher = ActiveSupport::EventedFileUpdateChecker
 
-  # If usng a Heroku, Vagrant or generic remote development environment,
+  # If using a Heroku, Vagrant or generic remote development environment,
   # use letter_opener_web, accessible at  /letter_opener.
-  #
   # Otherwise, use letter_opener, which launches a browser window to view sent mail.
-  if (ENV['HEROKU'] || ENV['VAGRANT'] || ENV['REMOTE_DEV'])
-    config.action_mailer.delivery_method = :letter_opener_web
-  else
-    config.action_mailer.delivery_method = :letter_opener
-  end
+  config.action_mailer.delivery_method = (ENV['HEROKU'] || ENV['VAGRANT'] || ENV['REMOTE_DEV']) ? :letter_opener_web : :letter_opener
 
   config.after_initialize do
     Bullet.enable        = true

config/routes.rb

@@ -3,12 +3,7 @@
 require 'sidekiq/web'
 
 Rails.application.routes.draw do
-
-  # Development-only routes
-  if Rails.env.development?
-    mount LetterOpenerWeb::Engine, at: "/letter_opener"
-  end
-
+  mount LetterOpenerWeb::Engine, at: 'letter_opener' if Rails.env.development?
   mount ActionCable.server, at: 'cable'
 
   authenticate :user, lambda { |u| u.admin? } do