Revert "Merge pull request #10433 from wangjohn/making_callbacks_more_performant"
Revert "Merge pull request #10433 from wangjohn/making_callbacks_more_performant"

This reverts commit 09751fdc847c25237891a8fcb0c2312e39bbe86d, reversing
changes made to 6a5ab08d21c4284a05f5e34484b18a91d4e5c50c.

This change caused a failure in
actionpack/test/abstract/callbacks_test.rb.

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