Should I remove some leaves?

Your plants seem to be very overfertilized. Leaf Burn: Edges of the leaves turning brown or yellow. Dark Green Leaves: Leaves may appear very dark green, which is a sign of excess nitrogen. Leaf Curling: Leaves may curl or become crispy. Don't give any more fertilizer for now and when the plants recover... you can think about removing the lowest leaves in the 2-3 week of flowering.

The stuff physically touching wall can be a concern. physically overlapping leaves too -- both cause condensation to occur. Extremely congested areas that can't breathe. You should have a very good reason to remove leaves. they are energy, lungs and production centers of the plant. they do more than collect light.