Remove metrics module

[To-om]

Request Type

(de)enhancement

Problem Description

Metrics module can be used to record platform metrics and export them to ganglia, graphite or influxdb.

It wasn't really used, weighs down binary package and requires code maintenance.

For these reasons, it is removed.

[crackytsi]

Only the Export metrics or also the Case metrics? I use case metrics a lot...

[To-om]

This is absolutely not related to case metrics. Here is technical data (response times, number of http requests, memory consumption, ...)