Revert "[nancy] add addressing plan for kavlan plage #4421"

This reverts commit 6db976d0.

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

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,

data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.json

 {
-  "addressing_plan": {
-    "kavlan": "10.16.0.0/14",
-    "virt": "10.144.0.0/14"
-  },
   "architecture": {
     "platform_type": "x86_64",
     "smp_size": 1,