remove skylight

Gemfile

@@ -15,7 +15,7 @@ gem 'opal', '~> 0.11.0'
 gem 'opal-rails'
 gem 'opal-jquery'
 gem 'opal-browser' , "0.2.0"
-gem "skylight"
+
 gem "rubyx" , "0.6" , git: "https://github.com/ruby-x/rubyx" , require: false
 gem "rubyx-debugger" , "0.3" , git: "https://github.com/ruby-x/rubyx-debugger" , require: false
 gem "rx-file" , git: "https://github.com/ruby-x/rx-file"

Gemfile.lock

@@ -236,8 +236,6 @@ GEM
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
     sexp_processor (4.11.0)
-    skylight (5.3.4)
-      activesupport (>= 5.2.0)
     sourcemap (0.1.1)
     spring (2.0.2)
       activesupport (>= 4.2)
@@ -297,7 +295,6 @@ DEPENDENCIES
   rubyx-debugger (= 0.3)!
   rx-file!
   sass-rails
-  skylight
   spring
   spring-watcher-listen (~> 2.0.0)
   susy (= 2.2.12)

config/skylight.yml

@@ -1,3 +0,0 @@
----
-# The authentication token for the application.
-authentication: iBGuWCzXDzUt--hY4yajFOPesFETdCZwhx0P0dwDFlU