drop now unused mpiutil

parallelUnitTests.cmake

@@ -182,17 +182,3 @@ opm_add_test(test_rstconv_parallel
   PROCESSORS
     4
 )
-
-opm_add_test(test_mpiutil
-  DEPENDS "opmsimulators"
-  LIBRARIES opmsimulators
-  CONDITION
-    MPI_FOUND AND Boost_UNIT_TEST_FRAMEWORK_FOUND
-  SOURCES
-    tests/models/test_mpiutil.cpp
-  DRIVER_ARGS
-    -n 4
-    -b ${PROJECT_BINARY_DIR}
-  PROCESSORS
-    4
-)