Latest CRDB version did't work with our server-side copy deletion
query and we had to rewrite it.
Fixes https://github.com/storj/storj/issues/4655
Change-Id: I66d5c4abfc3c3f53dea8bc01ae11cd2b020e4289
metabase has become a central concept and it's more suitable for it to
be directly nested under satellite rather than being part of metainfo.
metainfo is going to be the "endpoint" logic for handling requests.
Change-Id: I53770d6761ac1e9a1283b5aa68f471b21e784198