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diff --git a/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/cascade.rb b/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/cascade.rb
deleted file mode 100644
index a038aa1..0000000
--- a/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/cascade.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-module Rack
-  # Rack::Cascade tries an request on several apps, and returns the
-  # first response that is not 404 (or in a list of configurable
-  # status codes).
-
-  class Cascade
-    attr_reader :apps
-
-    def initialize(apps, catch=404)
-      @apps = apps
-      @catch = [*catch]
-    end
-
-    def call(env)
-      status = headers = body = nil
-      raise ArgumentError, "empty cascade"  if @apps.empty?
-      @apps.each { |app|
-        begin
-          status, headers, body = app.call(env)
-          break  unless @catch.include?(status.to_i)
-        end
-      }
-      [status, headers, body]
-    end
-
-    def add app
-      @apps << app
-    end
-
-    def include? app
-      @apps.include? app
-    end
-
-    alias_method :<<, :add
-  end
-end