[kernel] remove matplotlib output
[kernel] remove matplotlib output

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