For sure you can get various solvents that will remove wax, not least the special wax remover used for ski servicing. Whether that would be suitable or not for furniture I have no idea, but some years ago stripped oak was the rage in the UK, and the norm at that point was to remove not just the wax, but the accrued dirt and patina as well, from old furniture. I think acid baths were sometimes used, but the normal home method was a sander and a wire brush.