Switch Composer to 'simple' style

assets/stylesheets/pages/_simple.scss

@@ -21,7 +21,6 @@
 ._bower,
 ._chai,
 ._codeceptjs,
-._composer,
 ._docker,
 ._electron,
 ._fish,

lib/docs/scrapers/composer.rb

@@ -1,7 +1,7 @@
 module Docs
   class Composer < UrlScraper
     self.name = 'Composer'
-    self.type = 'composer'
+    self.type = 'simple'
 
     self.links = {
       home: 'https://getcomposer.org',