Sunset? So that after a few years people can do work on bridges without having to put up warnings? In a modern context, we wouldn't sunset a law saying that traffic lights be green and red, even though maybe in a few years we might want orange and pink. You dont mess around with safety warning standards.

We absolutely should sunset those laws.

If they are needed they can be voted upon again by parliament, and will no doubt pass.

In fact I would say not only should all laws have built in expiration dates, such expiration dates should be shorter the lower the percentage of votes in parliament it too to pass them!

If you can only get a 51% majority in parliament to pass a law, that law should not exist beyond that election.

You do not remove them. But you should change them when environment changes. Straw bale was decent indicator back in the day. But I think there should be some more modern and even global standard that law could be changed to. And this should be done with reasonable planning, schedule and communication.

If the law is actually valuable and there is political capital for its continuation then surely the legislative body can vote to extend it with minimal fuss.