[Common] [PID] mute charge (now unused) (#8639)

Author: njacazio

Common/DataModel/PIDResponseITS.h

@@ -53,7 +53,7 @@ struct ITSResponse {
   static float expSignal(const float momentum)
   {
     static constexpr float inverseMass = 1. / o2::track::pid_constants::sMasses[id];
-    static constexpr float charge = static_cast<float>(o2::track::pid_constants::sCharges[id]);
+    // static constexpr float charge = static_cast<float>(o2::track::pid_constants::sCharges[id]);
     const float bg = momentum * inverseMass;
     if (id == o2::track::PID::Helium3 || id == o2::track::PID::Alpha) {
       return (mITSRespParamsZ2[0] / (std::pow(bg, mITSRespParamsZ2[1])) + mITSRespParamsZ2[2]);
@@ -65,7 +65,7 @@ struct ITSResponse {
   static float expResolution(const float momentum)
   {
     static constexpr float inverseMass = 1. / o2::track::pid_constants::sMasses[id];
-    static constexpr float charge = static_cast<float>(o2::track::pid_constants::sCharges[id]);
+    // static constexpr float charge = static_cast<float>(o2::track::pid_constants::sCharges[id]);
     const float bg = momentum * inverseMass;
     float relRes = mResolutionParams[0] * std::erf((bg - mResolutionParams[1]) / mResolutionParams[2]);
     return relRes;