[jaeger-v2] Do away with storage.ArchiveFactory

[yurishkuro]

Per comment https://github.com/jaegertracing/jaeger/pull/5152/files#r1501916983

We need to get rid of storage.ArchiveFactory interface because it is conceptually meaningless - archive storage is just a storage that implements SpanStorage interface. It should be the same thing with Factory, just have a storage.Factory that in context can be interpreted as primary or archive. We unnecessarily bundle these two.

[h4shk4t]

I would like to work on this.

[Wise-Wizard]

Can I work on this issue?

[yurishkuro]

I am gonna close this as I don't think it's necessary given how v2 storage is evolving. @james-ryans is working on defining a new storage APIs for v2 where there won't be archive storage as an explicit interface.