Anyone can suggest another bunker to "add strategy", they do so almost by definition. But then again, many don't.
Let's take some famous courses and think about bunkers which are unnecessary.
I'll start: Pacific Dunes. I've never seen anybody in the bunker at the very back of the fourth green, along the cliff edge ... they don't put the pin way back there much. And I've only seen a very bad player in the bunker about 40 yards short and wide right of the sixth green.
There are probably a couple more which are superfluous, but if you want to pick an individual I'll try to explain its purpose. If not, we can move on to another course, say Pebble Beach.