Removed testing with oban-scripts

The integration of the patch that tests using oban-scripts failed
becasue the python environment didn't work under the old OS builder
(cen7, without docker)
Removed this change because we are using a new test strategy from the
refactored branch. We might re-instate this code later and solve the
python issue

Change-Id: I8717750499184a84baa627e88bb333917ea4ab49