views: standardize page titles.

app/controllers/application_controller.rb

@@ -4,7 +4,6 @@ class ApplicationController < ActionController::Base
   before_action :reset_current_user
   before_action :set_current_user
   after_action :reset_current_user
-  before_action :set_title
   before_action :normalize_search
   before_action :set_started_at_session
   before_action :api_check
@@ -190,10 +189,6 @@ class ApplicationController < ActionController::Base
     end
   end
 
-  def set_title
-    @page_title = Danbooru.config.app_name + "/#{params[:controller]}"
-  end
-
   # Remove blank `search` params from the url.
   #
   # /tags?search[name]=touhou&search[category]=&search[order]=