[numerics] remove unneeded test without MPI (Codacy)
[numerics] remove unneeded test without MPI (Codacy)

radarsat1/siconos,siconos/siconos,radarsat1/siconos,siconos/siconos,siconos/siconos,radarsat1/siconos,radarsat1/siconos,radarsat1/siconos,siconos/siconos