[lille][chifflet] Retire cluster chifflet.

data/grid5000/sites/lille/clusters/chifflet/chifflet.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json

...grid5000/sites/lille/network_equipments/sw-chiclet-3.json

data/grid5000/sites/lille/pdus/pdu-b3p1.json

data/grid5000/sites/lille/pdus/pdu-b3p2-1.json

data/grid5000/sites/lille/pdus/pdu-b3p2-2.json

data/grid5000/sites/lille/pdus/pdu-b3p3.json

input/grid5000/ipv4.yaml

input/grid5000/sites/lille/clusters/chifflet/chifflet.yaml

...d5000/sites/lille/clusters/chifflet/chifflet_metrics.yaml

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-1.yaml

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-2.yaml

...d5000/sites/lille/clusters/chifflet/nodes/chifflet-3.yaml