leave them alone, if there not dead leave them alone, if they are covering a bud just move it. Taking a few here and there will not kill the plant but why do it? The fan leaves are the gas tanks for your plants growth. You have 2 plants 2 1/2' high under a 600. You have lots of room to grow them and you still have some height left. Next time I might suggest that you top the plant 1 week before you flip than you will have fat stocky plants.
Peace
If you just got to cut than start at the bottom of the plant in 3 weeks it will not get much light anyway, it's called lolly popping and helps with air flow.