[TASK] Deactivate code coverage until unit tests are written

As there aren't unit tests at all, scrutinizer states
a code coverage of 100% which is wrong.

Releases: 2.0.0
Change-Id: I389b86d2830263c4b15847ba87cc9c04366c649c
[TASK] Again fix several issues mentioned in scrutinizer

Releases: 2.0.0
Change-Id: I5790d86ac7936ae6f18807fc8417a892defffa4a