Revert "Basic, generic validator for request bodies."
Removing from metadata_cleanup branch.

This reverts commit 095fa3913d9582cc88993d518c1cae359bd5e1f1.
Revert "Moving call out of try clause that didn't need to be wrapped"
Removing from metadata_cleanup branch.

This reverts commit 9bdb4be5383a8f3993063e556b40950d6d086253.
Revert "Cleared up some inconsistencies in the get_next_job code."
Removing from metadata_cleanup branch.

This reverts commit 1285e3ab28bc092824be7a39cb749de6aa232565.