You remove anyhting blocking light to budsites you want to keep! I wouldn't go as far as Green75 right now for he snaps one fan off each node for most of the plants life and they learn to grow like that,yes plants learn!
You can start by removing the lower fan-leaves totally for about 2 inches from the start of them..Then i would tie down just a bit the middle lady for she is getting a bit tall there,couple inches more than the others? Gently tie her a bit lower to even out the canopy..
Back to leaves,also remove anything from the middle of the plant so air moves around better...Other than that my friend,we are on the same day,day 15 here for me and they are looking awesome,good job!