Revert "Rescue and notify exceptions in feed-updater and delayed_job"

This reverts commit 350ac9c2d4ad9e89ed3b72e8d036ca5f36399c6e.
Revert "Removing mistake on delayed_job monkey patch"

This reverts commit e26d9d798a35ab122183e05c4128d4387b50cdf1.
Revert "Moving delayed job changes to a monkey patch"

This reverts commit 41fadb5a71acfaa8eeb112a0650b7fb46f131be4.
Revert patch