Revert "jbd2: fix kabi broken in struct journal_s"

hulk inclusion
category: bugfix
bugzilla: 50788
CVE: NA
---------------------------

This reverts commit c18bc51c.
Prepare to backport fcf37549 ("jbd2: ensure abort the journal if
detect IO error when writing original buffer back"), will re-add after
backport.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Yang Erkun <yangerkun@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>