refactor(semantic): remove unneeded logic in parsing semver-like versions

[G-Rath]

While I'm a little reluctant to do this as I'm sure I included these for a reason, they're apparently not covered by any tests and the longer they remain the more likely someone might start actually depending on them.

I'm pretty sure the bulk of this was present as part of having semantic rebuild the parsed version for debugging when I was writing the implementation, but that's not actually a feature so we don't explicitly need to be doing it - this won't stop us from reintroducing the logic in future if we decide we want it