Removed LArMonPostProc.yaml duplicate + lar post-processes bugfixes
Removed duplicate LArMonPostProc.yaml from LArCalorimeter/LArMonitoring/python/, we only keep the version inside DataQualityUtils. Bugfixes in DataQualityUtils/LArMonPostProc.yaml and LArMonitoring/LArMonTransforms.py: fixes the LAr/Coverage/CoverageHW plots not being post-processed properly.