InDetTrigRecExample: Delete obsolete job options
Delete some obviously obsolete job options (e.g. referencing TrigSteer_L2). Also delete plotting script and InDetTrigRecNtupleCreation.py (including reference to it in RecExCommon).
Delete some obviously obsolete job options (e.g. referencing TrigSteer_L2). Also delete plotting script and InDetTrigRecNtupleCreation.py (including reference to it in RecExCommon).