Retirement of grisou-[49-51]

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

...grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json

...grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json

...grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.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/sites/nancy/clusters/grisou/grisou.yaml

input/grid5000/sites/nancy/clusters/grisou/grisou_pdu.yaml

...grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.yaml

...grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.yaml

...grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.yaml

input/grid5000/sites/nancy/networks/gw-nancy.yaml