Revert "ioengines: Make td_io_queue print log_err when got error "

We should not be making these error prints, they are purely
information, and in fact they should probably get deleted all
together.

For now, as this is actually breaking test frameworks, just revert
the change.

This reverts commit 3c826d1.

https://lore.kernel.org/fstests/20240415182231.GA2649469@mit.edu/
Reported-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

ioengines.c

@@ -413,15 +413,15 @@ enum fio_q_status td_io_queue(struct thread_data *td, struct io_u *io_u)
 	if (io_u->error == EINVAL && td->io_issues[io_u->ddir & 1] == 1 &&
 	    td->o.odirect) {
 
-		log_err("fio: first direct IO errored. File system may not "
+		log_info("fio: first direct IO errored. File system may not "
 			 "support direct IO, or iomem_align= is bad, or "
 			 "invalid block size. Try setting direct=0.\n");
 	}
 
 	if (zbd_unaligned_write(io_u->error) &&
 	    td->io_issues[io_u->ddir & 1] == 1 &&
 	    td->o.zone_mode != ZONE_MODE_ZBD) {
-		log_err("fio: first I/O failed. If %s is a zoned block device, consider --zonemode=zbd\n",
+		log_info("fio: first I/O failed. If %s is a zoned block device, consider --zonemode=zbd\n",
 			 io_u->file->file_name);
 	}