Revert "Implement /api/tmp-do-not-ship-set-all-indefinite" (#5337)
Revert "Implement /api/tmp-do-not-ship-set-all-indefinite" (#5337)

This reverts commit cbddd7ca767f8d09c36a02dc755c4df932e5a463.
mozilla-services/screenshots,mozilla-services/pageshot,mozilla-services/pageshot,mozilla-services/pageshot,mozilla-services/screenshots,mozilla-services/screenshots,mozilla-services/screenshots,mozilla-services/pageshot