Dandelion Mané 4ae502bfd3 remove old-style git loading, and its testing
I'm re-organizing SC data to be oriented on the graph, rather than on
plugin-specific data structures. So there is no longer a need for the
git loading logic which orients around saving a repository.json file
that's been potentially merged across repos, or indeed the logic for
merging repositories at all. So I'm removing `git/loadGitData`,
`git/mergeRepository`, and relatives.

Test plan: `yarn test --full` passes.
2019-07-23 01:01:09 +01:00
..
2019-07-11 06:37:56 +01:00