Alexander Reelsen 0c7c2f521c Watcher: Remove scheduler based trigger engine (elastic/x-pack-elasticsearch#724)
The scheduler based trigger engine is not enabled by default
as the ticker based trigger engine is used. As we dont use it
in production, this commit removes this specific implementation.

It also removes some uneeded abstractions like AbstractTriggerEngine, TriggerEngine.Listener and TriggerEngine.Job

Original commit: elastic/x-pack-elasticsearch@b17a2e9d62
2017-03-21 10:27:41 +01:00
..
2017-03-12 01:19:17 -05:00