Automatic merge from submit-queue (batch tested with PRs 42053, 41282, 42056, 41663, 40927)

Fully remove hand-written listers and informers

Note: the first commit is from #41927. Adding do-not-merge for now as we'll want that to go in first, and then I'll rebase this on top.

Update statefulset controller to use a lister for PVCs instead of a client request. Also replace a unit test's dependency on legacylisters with the generated ones. cc @kargakis @kow3ns @foxish @kubernetes/sig-apps-pr-reviews 

Remove all references to pkg/controller/informers and pkg/client/legacylisters, and remove those packages.

@smarterclayton @deads2k this should be it!

cc @gmarek @wojtek-t @derekwaynecarr @kubernetes/sig-scalability-pr-reviews