[ex-fluidsystem][2pprob] get rid of obsolete output

exercises/exercise-fluidsystem/2pproblem.hh

@@ -148,7 +148,6 @@ public:
 #endif // !(HAVE_DUNE_ALUGRID || HAVE_UG)
 
         // initialize the tables for the water properties
-        std::cout << "Initializing the tables for the water properties" << std::endl;
         Components::TabulatedComponent<Components::H2O<Scalar>>::init(/*tempMin=*/273.15,
                                                                       /*tempMax=*/623.15,
                                                                       /*numTemp=*/100,