message: clean up some redundancy/dead-code/style in mpi::init
diff: @@ -146,17 +146,7 @@ namespace mpicommon {
  /* MPI was already initialized by the app that called us! */
  MPI_Query_thread(&provided);
  }
  -
  - int rank;
  - MPI_CALL(Comm_rank(MPI_COMM_WORLD,&rank));
  - switch(provided) {
  - case MPI_THREAD_MULTIPLE:
  - mpiIsThreaded = true;
  - break;
  - default:
  - mpiIsThreaded = false;
  - break;
  - }
  + mpiIsThreaded = provided == MPI_THREAD_MULTIPLE;
  world.comm = MPI_COMM_WORLD;
  MPI_CALL(Comm_rank(MPI_COMM_WORLD,&world.rank));
  