Re-enable overdue quiz submission auto-grading

Undoes what CNVS-9605 did and brings back the behavior introduced by
CNVS-2337.

Closes CNVS-9689

TEST PLAN
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See test plan in https://gerrit.instructure.com/#/c/25400 as it's
basically the same effect.

Change-Id: Ie54e262df6d917922934d423299b594a9dddfaa4
Reviewed-on: https://gerrit.instructure.com/30211
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Myller de Araujo <myller@instructure.com>
Reviewed-by: Josh Simpson <jsimpson@instructure.com>
Product-Review: Ahmad Amireh <ahmad@instructure.com>