[nancy] remove pdu information for clusters which have been relocated to the DCML

data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json

@@ -286,16 +286,6 @@
     "pstate_governor": "performance",
     "turboboost_enabled": true
   },
-  "pdu": [
-    {
-      "port": 1,
-      "uid": "graffiti-pdu1"
-    },
-    {
-      "port": 1,
-      "uid": "graffiti-pdu2"
-    }
-  ],
   "performance": {
     "core_flops": 33600000000,
     "node_flops": 537600000000