jbd2: revert "jbd2: add COW fields to struct jbd2_journal_handle"

This reverts commit 93737456d6.

The cow-snapshots effort is no longer active, so remove these extra
fields to shrink down the handle structure.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Theodore Ts'o 2013-02-07 00:02:15 -05:00
commit 078d5039a1