OPS-268 Revert "Merge pull request #1 from ifeelgoods/topic_add_logger"

This reverts commit 31c94fa674f8ad0054c5cef6a7d3da9ad0fbefa4, reversing
changes made to da748225222c58439aa44ac5b1835c3ea2019fa8.

Conflicts:
	lib/exception_notifier.rb
Merge pull request #3 from ifeelgoods/topic_remove_custom_logger

OPS-268 Revert "Merge pull request #1 from ifeelgoods/topic_add_logger"