test_densead: no reason to initialize MPI here

thus we no longer depend on dune-common

CMakeLists_files.cmake

@@ -384,6 +384,7 @@ list (APPEND TEST_SOURCE_FILES
       tests/test_ConditionalStorage.cpp
       tests/test_cubic.cpp
       tests/test_EvaluationFormat.cpp
+      tests/test_densead.cpp
       tests/test_fluidmatrixinteractions.cpp
       tests/test_fluidsystems.cpp
       tests/test_messagelimiter.cpp
@@ -400,7 +401,6 @@ list (APPEND TEST_SOURCE_FILES
 # tests that need to be linked to dune-common
 list(APPEND DUNE_TEST_SOURCE_FILES
       tests/test_co2brine_ptflash.cpp
-      tests/test_densead.cpp
       tests/test_immiscibleflash.cpp
       tests/test_ncpflash.cpp
       tests/test_pengrobinson.cpp

tests/test_densead.cpp

@@ -37,8 +37,6 @@
 #include <opm/material/densead/Evaluation.hpp>
 #include <opm/material/densead/Math.hpp>
 
-#include <dune/common/parallel/mpihelper.hh>
-
 #include <iostream>
 #include <array>
 #include <cmath>
@@ -682,10 +680,8 @@ private:
     int numDerivs_;
 };
 
-int main(int argc, char **argv)
+int main()
 {
-    Dune::MPIHelper::instance(argc, argv);
-
     std::cout << "Testing statically sized evaluations\n";
     std::cout << " -> Scalar == double, n = 15\n";
     StaticTestEnv<double, 15>().testAll();