I agree about removing some foliage, but remove mostly the lower leaves. This improves ventilation around the plants, which don't like all that autumnal dampness we can get. But don't overdo it, as the leaves make the sugar that is translocated into the fruits to make them sweet. You should be "stopping" the plants by now by removing the tops - any new fuit forming now won't ripen. You want the plants putting all their energy into ripening the existing fruits.