remove advertisement code

config/danbooru_default_config.rb

@@ -107,11 +107,6 @@ module Danbooru
       300
     end
 
-    # Where the ad banners are stored in the file system
-    def advertisement_path
-      nil
-    end
-
     # List of memcached servers
     def memcached_servers
       %w(127.0.0.1:11211)
@@ -266,10 +261,6 @@ module Danbooru
       !user.is_gold?
     end
 
-    def is_user_advertiser?(user)
-      user.is_admin?
-    end
-
     def can_user_see_post?(user, post)
      if is_user_restricted?(user) && is_post_restricted?(post)
         false

config/routes.rb

@@ -71,9 +71,6 @@ Rails.application.routes.draw do
     end
   end
 
-  resources :advertisements do
-    resources :hits, :controller => "advertisement_hits", :only => [:create]
-  end
   resources :artists do
     member do
       put :revert