OpenSearch/elasticsearch
Ryan Ernst 549a5d3e73 Remove interfaces for notification services
We have 4 types of notification services, and all of them have an
interface with a single implementation class. They also all
unnecessarily are lifecycle componenets, but the only thing start does
is read the settings.

This change converts all 4 notification services to classes, and makes
them regular components instead of lifecycle services.

Original commit: elastic/x-pack-elasticsearch@897115ae65
2016-08-03 00:07:26 -07:00
..
2016-07-28 00:16:18 -07:00