Regularization and refactoring is actually an integral part of most legal systems. Most jurisdictions in the US go through periodic (1-5 decade) "recodifications" of their law, where the code is reorganized to clean up all the path dependencies of the organically grown law. Restatements do something similar for common law (although they are arguably becoming less influential). Non-US jurisdictions often accomplish this by periodically repealing and replacing laws in their entirety.