Removing eff C++ warnings (Marian)

Removing eff C++ warnings (Marian)

AliTPCAltroEmulator.h AliTPCAltroEmulator.cxx - ClassDef ClassImp

AliTPCCalROC.cxx - Comparison - signed unsigned

AliTPCcalibDB - initialization of TObject in cosntructor

AliTPCLaserTracks - return statement

AliTPCCalibViewerGUI - commented unused parameters in private constructor
AliTPCGenDBConf  - commented unused parameters in private constructor

 AliTPCCalibTCF  - parentheses around assignment

AliTPCTransform  - removing unused variable ‘pad’

AliTPCcalibTracksCuts - initialization in the meber list, Print method constant