1 files changed, 0 insertions, 50 deletions
diff --git a/railties/lib/rails/application/metal_loader.rb b/railties/lib/rails/application/metal_loader.rb
deleted file mode 100644
index 2a43fa7892..0000000000
--- a/railties/lib/rails/application/metal_loader.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-require 'action_dispatch'
-
-module Rails
-  class Application
-    class MetalLoader
-      attr_reader :paths, :metals
-
-      def initialize
-        @paths, @metals = [], []
-      end
-
-      def build_middleware(list=nil)
-        load_metals!(list)
-        self
-      end
-
-      def new(app)
-        ActionDispatch::Cascade.new(@metals, app)
-      end
-
-      def name
-        ActionDispatch::Cascade.name
-      end
-      alias :to_s :name
-
-    protected
-
-      def load_metals!(list)
-        metals = []
-        list = Array(list || :all).map(&:to_sym)
-
-        paths.each do |path|
-          matcher = /\A#{Regexp.escape(path)}\/(.*)\.rb\Z/
-          Dir.glob("#{path}/**/*.rb").sort.each do |metal_path|
-            metal = metal_path.sub(matcher, '\1').to_sym
-            next unless list.include?(metal) || list.include?(:all)
-            require_dependency metal.to_s
-            metals << metal
-          end
-        end
-
-        metals = metals.sort_by do |m|
-          [list.index(m) || list.index(:all), m.to_s]
-        end
-
-        @metals = metals.map { |m| m.to_s.camelize.constantize }
-      end
-    end
-  end
-end