jbd2: don't abort the journal when freeing buffers

Now that we can be sure the journal is aborted once a buffer has failed
to be written back to disk, we can remove the journal abort logic in
jbd2_journal_try_to_free_buffers() which was introduced in
commit c044f3d8 ("jbd2: abort journal if free a async write error
metadata buffer"), because it may cost and propably is not safe.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210610112440.3438139-4-yi.zhang@huawei.com


Signed-off-by: Theodore Ts'o <tytso@mit.edu>