removing unused variables

Author: Cristopher-Morales

SU2_CFD/src/solvers/CNSSolver.cpp

@@ -619,8 +619,6 @@ void CNSSolver::BC_Isothermal_Wall_Generic(CGeometry *geometry, CSolver **solver
 
   const bool implicit = (config->GetKind_TimeIntScheme() == EULER_IMPLICIT);
   const su2double Temperature_Ref = config->GetTemperature_Ref();
-  const su2double Prandtl_Lam = config->GetPrandtl_Lam();
-  const su2double Prandtl_Turb = config->GetPrandtl_Turb();
   const su2double Gas_Constant = config->GetGas_ConstantND();
 
   /*--- Identify the boundary and retrieve the specified wall temperature from