OK, having checked it, I am now sure you ARE talking about Section 68 which was the bit about vehicular rights of access over Common Land.
Following on from a landmark legal case in 2005, the Law Lords overturned a ruling made in the earlier Hanning case by the Court of Appeal. The Law Lords judgement was that under certain circumstances a right of access can be granted for vehicules across Common Land by prescription (the 20 year rule). Therefore S68 became redundant, because the legal right to vehicular access that those owning land in the midst of Common Land required in most cases was possible without using S68 'rules' and scales of payment for acquiring a right under the Act.
That's life, I'm afraid. There is a clear distinction between the way that parliament legislates and the way that judges interpret that legislation, and the principal of case law, by which the determination of one case drives future decisions holds.