1 files changed, 0 insertions, 6 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb
index ca6937eeb3..4ee8cf2457 100644
--- a/activesupport/lib/active_support/callbacks.rb
+++ b/activesupport/lib/active_support/callbacks.rb
@@ -89,8 +89,6 @@ module ActiveSupport
     end
 
     class Callback #:nodoc:#
-      @@_callback_sequence = 0
-
       class Basic < Callback
       end
 
@@ -150,10 +148,6 @@ module ActiveSupport
         chain.name
       end
 
-      def next_id
-        @@_callback_sequence += 1
-      end
-
       def matches?(_kind, _filter)
         @kind == _kind && filter == _filter
       end