Update initial_value parameters of generic_system tests (#1943)

Author: kumar-sanjeeev

hardware_interface/src/mock_components/generic_system.cpp

@@ -725,10 +725,6 @@ void GenericSystem::initialize_storage_vectors(
             states[index][i] = hardware_interface::stod(it2->second);
             print_hint = true;
           }
-          else
-          {
-            print_hint = true;
-          }
         }
       }
     }