Convert remote deduction fixtures (todo: checking)
Convert remote deduction fixtures (todo: checking)

This converts the old remote repo deduction fixtures into something
based on the new system. A bit more refactoring is still needed to fully
flesh out exactly where these fixtures are applied, but for historical
clarity, it's worth breaking the conversion into a single commit.

ibrasho-forks/dep,golang/dep,golang/dep,golang/dep,ibrasho-forks/dep