This is probably going to be a matter of your preference. I think it is normal for a baby to wake once to feed, even up to 9 months old. If you like the dreamfeed, he likes the dreamfeed, and he sleeps well after the dreamfeed, then stick with it. If you prefer to let him sleep (skip df) and just see if he wakes up later, than try it. It can take a week or so to adjust after making a change like dropping the df, so if you do it, give him some time to get used to it.