Refactor Host Config Infra (getting rid of .inline*.js) (#18240)

* Require deep for reconcilers

* Delete inline* files

* Delete react-reconciler/persistent

This no longer makes any sense because it react-reconciler takes
supportsMutation or supportsPersistence as options. It's no longer based
on feature flags.

* Fix jest mocking

* Fix Flow strategy

We now explicitly list which paths we want to be checked by a renderer.
For every other renderer config we ignore those paths.

Nothing is "any" typed. So if some transitive dependency isn't reachable
it won't be accidentally "any" that leaks.