[nancy][graphique] retirement

data/grid5000/sites/nancy/clusters/graphique/graphique.json

...000/sites/nancy/clusters/graphique/nodes/graphique-2.json

...000/sites/nancy/clusters/graphique/nodes/graphique-3.json

...000/sites/nancy/clusters/graphique/nodes/graphique-4.json

...000/sites/nancy/clusters/graphique/nodes/graphique-5.json

...000/sites/nancy/clusters/graphique/nodes/graphique-6.json

data/grid5000/sites/nancy/network_equipments/gw.json

data/grid5000/sites/nancy/pdus/graoully-pdu1.json

data/grid5000/sites/nancy/pdus/graoully-pdu2.json

data/grid5000/sites/nancy/pdus/grimoire-pdu1.json

input/grid5000/dell-product-data.yaml

input/grid5000/ipv4.yaml

input/grid5000/sites/nancy/clusters/graphique/graphique.yaml

...d5000/sites/nancy/clusters/graphique/graphique_extra.yaml

...000/sites/nancy/clusters/graphique/graphique_metrics.yaml

...rid5000/sites/nancy/clusters/graphique/graphique_pdu.yaml

...000/sites/nancy/clusters/graphique/nodes/graphique-2.yaml

...000/sites/nancy/clusters/graphique/nodes/graphique-3.yaml

...000/sites/nancy/clusters/graphique/nodes/graphique-4.yaml

...000/sites/nancy/clusters/graphique/nodes/graphique-5.yaml