Add config.preload_frameworks to load all frameworks at startup. Default to false so Rails autoloads itself as it's used.

actionpack/lib/action_controller.rb

@@ -100,5 +100,3 @@ autoload :Mime, 'action_controller/mime_type'
 
 autoload :HTML, 'action_controller/vendor/html-scanner'
 autoload :Rack, 'action_controller/vendor/rack'
-
-ActionController.load_all! unless ENV['LAZY']

actionpack/lib/action_view.rb

@@ -55,5 +55,3 @@ class ERB
 end
 
 I18n.load_path << "#{File.dirname(__FILE__)}/action_view/locale/en.yml"
-
-ActionView.load_all! unless ENV['LAZY']