stat: always show disk util in terse v3/v4

Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/stat.c b/stat.c
index 9d816d4..bae3338 100644
--- a/stat.c
+++ b/stat.c
@@ -896,8 +896,7 @@
 		log_info(";%3.2f%%", io_u_lat_m[i]);
 
 	/* disk util stats, if any */
-	if (is_backend)
-		show_disk_util(1, NULL);
+	show_disk_util(1, NULL);
 
 	/* Additional output if continue_on_error set - default off*/
 	if (ts->continue_on_error)