diff --git a/config/initializers/10-patches.rb b/config/initializers/10-patches.rb
index 327cdd778..e9d15cae5 100644
--- a/config/initializers/10-patches.rb
+++ b/config/initializers/10-patches.rb
@@ -214,17 +214,3 @@ module ActionView
     end
   end
 end
-
-# https://github.com/rack/rack/pull/1703
-# TODO: remove this when Rack is updated to 3.0.0
-require 'rack'
-module Rack
-  class RewindableInput
-    unless method_defined?(:size)
-      def size
-        make_rewindable unless @rewindable_io
-        @rewindable_io.size
-      end
-    end
-  end
-end