Yes, I would defoliate them,
First, so that air can circulate better and no moisture and mold can form.
Second, so that the buds located a bit lower also get light.
You shouldn't just remove leaves randomly but do it systematically. Only remove the leaves that cover the buds, meaning those that cast shadows on the flowers. Then remove those that have a lot of surface area touching your tent walls; the more surface area that touches the tent, the more moisture will form on them. And in the end, remove those that are too far down; they are not in the light, and this way, more air can penetrate below.
That's how I do it, and the plant won't be too stressed. An example would be my White Widow; of course, it's not in such a small tent, but it would still be defoliated and pruned.