Remove the railroady gem (unused)

Gemfile

@@ -144,8 +144,6 @@ group :development, :test do
   gem 'spring-commands-rspec'
   gem 'rspec-rails', '~> 3.0'
 
-  gem 'railroady'
-
   gem 'rubocop', require: false
   gem 'rubocop-checkstyle_formatter', require: false
   gem 'rubocop-rspec', require: false

Gemfile.lock

@@ -436,7 +436,6 @@ GEM
       rack (>= 1.1)
     rack-test (0.6.3)
       rack (>= 1.0)
-    railroady (1.5.2)
     rails (5.0.0.1)
       actioncable (= 5.0.0.1)
       actionmailer (= 5.0.0.1)
@@ -698,7 +697,6 @@ DEPENDENCIES
   poltergeist
   pry-byebug
   rack-handlers
-  railroady
   rails (= 5.0.0.1)
   rails-controller-testing
   redis
@@ -735,4 +733,4 @@ DEPENDENCIES
   xray-rails
 
 BUNDLED WITH
-   1.14.4
+   1.14.6