[nancy] delete mac field for Infiniband devices on griffon cluster. See bug3203

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

...id5000/sites/nancy/clusters/griffon/nodes/griffon-10.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-11.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-12.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-13.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-14.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-15.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-16.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-17.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-18.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-19.json

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

...id5000/sites/nancy/clusters/griffon/nodes/griffon-20.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-21.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-22.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-23.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-24.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-25.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-26.json

...id5000/sites/nancy/clusters/griffon/nodes/griffon-27.json