[nancy][grimani] retirement

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

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json

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

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

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

input/grid5000/dell-product-data.yaml

input/grid5000/ipv4.yaml

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

...rid5000/sites/nancy/clusters/grimani/grimani_metrics.yaml

input/grid5000/sites/nancy/clusters/grimani/grimani_pdu.yaml

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-1.yaml

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-2.yaml

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-3.yaml

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-4.yaml

...rid5000/sites/nancy/clusters/grimani/nodes/grimani-5.yaml