Revert "Redux logic errors"

[outoftime]

Reverts #1954

Fixes #2121

[outoftime]

FWIW I donʼt think #1954 introduced the root cause of the regression—I suspect that an existing problem in the validation code path had more severe user-facing consequences because of differences in error handling between redux-saga and redux-logic. So, the followup here will be to both fix the specific uncaught error (calling toString() on a possibly-nullish value) as well as adding more graceful uncaught error handling to our redux-logic deployment.