Revert "Avoid creating archive status ".ready" files too early"
This reverts commit
515e3d84a0b5 and equivalent commits in back
branches. This solution to the problem has a number of problems, so
we'll try again with a different approach.
Per note from Andres Freund
Discussion: https://postgr.es/m/
20210831042949.52eqp5xwbxgrfank@alap3.anarazel.de