I wouldn't remove any leaves now, it's not that bushy. The plant will need every bit of energy going into flower, both from light and food.
Once you start seeing deficiencies it will usually show up in the older leaves first, the plant will eat food from them, and eventually those deficient leaves will yellow, brown and dry up. And that will be your natural defoliation on its own, and a way for you tell when to feed and what to feed.
If you remove leaves now, any deficiency will show up in the newer leaves that you want to keep, then you'll have a shortage of green leaves. Just keep everything for now.
You could use a wire to raise that lower leaf touching the moist soil. Maybe LST soon. And what is that white stuff on the right side?