Ref T13639. Move Diffusion to use the new API and get rid of the old API now that it no longer has any callers.
- Maniphest Tasks
- T13639: Allow revisions to be queried by affected path via the API
- rP6d33ba7dc401: Move Diffusion to "withPaths()" for "Recent Open Revisions", and remove…
Grepped for remaining callers.