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-rw-r--r--lib/rainbows/event_machine.rb3
1 files changed, 0 insertions, 3 deletions
diff --git a/lib/rainbows/event_machine.rb b/lib/rainbows/event_machine.rb
index 2425cf0..2fa18f1 100644
--- a/lib/rainbows/event_machine.rb
+++ b/lib/rainbows/event_machine.rb
@@ -35,9 +35,6 @@ module Rainbows
       include Rainbows::EvCore
       G = Rainbows::G
 
-      # Apps may return this Rack response: AsyncResponse = [ -1, {}, [] ]
-      ASYNC_CALLBACK = 'async.callback'.freeze
-
       def initialize(io)
         @_io = io
       end