tauRecTools: remove dumplicate variables in TauIDVarCalculator
In TauIDVarCalculator, several variables are not used in the reconstruction. Actually, these variables are duplicate (already calculated in other tools), thus, removed.
- MU (pileup), already decorated to tau in MvaTESVariableDecorator with a different name.
- NUMTRACK, already in EDM, calculated in TauTrackClassifier
- NUMWIDETRACK, already in EDM, calculated in TauTrackClassifier
- TAU_TRT_NHT_OVER_NLT, already in EDM, calculated in TauElectronVetoVariables
- HADLEAKET, already in EDM, calculatedin TauElectronVetoVariables