Yes, let’s get rid of the [legal-proceedings] tag.
The tag wiki description for [laws] reads:
Questions relating to in-universe laws of a work.
That is an equally apt description of legal proceedings (which doesn’t have a tag wiki of its own). It’s hard to see a distinction between the tags; as such, we should move to abolish one of them. Since [legal-proceedings] has fewer questions and no description, that‘s the one to go.
Additionally, three of the four questions tagged with [legal-proceedings] are already tagged with [laws]. In its current form it isn’t adding anything useful to the questions.