Remove exception notification initializer
Remove exception notification initializer

There's no need for this if the initializers are provided at deploy-time. Once
alphagov/alphagov-deployment#58 gets merged, that will be true.

aledelcueto/smart-answers,tadast/smart-answers,askl56/smart-answers,lutgendorff/smart-answers,alphagov/smart-answers,aledelcueto/smart-answers,ministryofjustice/smart-answers,aledelcueto/smart-answers,stwalsh/smart-answers,stwalsh/smart-answers,ministryofjustice/smart-answers,lutgendorff/smart-answers,tadast/smart-answers,keithiopia/smart-answers,alphagov/smart-answers,ministryofjustice/smart-answers,stwalsh/smart-answers,stwalsh/smart-answers,aledelcueto/smart-answers,askl56/smart-answers,lutgendorff/smart-answers,tadast/smart-answers,alphagov/smart-answers,tadast/smart-answers,askl56/smart-answers,keithiopia/smart-answers,lutgendorff/smart-answers,askl56/smart-answers,alphagov/smart-answers,keithiopia/smart-answers