diff --git a/lib/faraday/options/request_options.rb b/lib/faraday/options/request_options.rb
index dbe1d7ea..1a96fb8f 100644
--- a/lib/faraday/options/request_options.rb
+++ b/lib/faraday/options/request_options.rb
@@ -18,7 +18,5 @@ module Faraday
     def stream_response?
       on_data.is_a?(Proc)
     end
-
-    TIMEOUT_TYPES = Set.new(%i[read write open])
   end
 end