[all] removed duplicated entries that had different values

dev/input/grid5000/sites/grenoble/clusters/edel/edel.yaml

...input/grid5000/sites/grenoble/clusters/genepi/genepi.yaml

...000/sites/lille/clusters/chirloute/nodes/chirloute-2.yaml

...t/grid5000/sites/luxembourg/clusters/granduc/granduc.yaml

.../luxembourg/clusters/petitprince/nodes/petitprince-8.yaml

dev/input/grid5000/sites/lyon/clusters/hercule/hercule.yaml

...id5000/sites/nancy/clusters/graoully/graoully_ip.yaml.erb

...ut/grid5000/sites/nancy/clusters/graphique/graphique.yaml

...000/sites/nancy/clusters/graphique/nodes/graphique-2.yaml

dev/input/grid5000/sites/nancy/clusters/griffon/griffon.yaml

.../grid5000/sites/nancy/clusters/grimoire/grimoire.yaml.erb

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

...nput/grid5000/sites/nancy/clusters/grisou/grisou.yaml.erb

...input/grid5000/sites/nantes/clusters/econome/econome.yaml

...put/grid5000/sites/rennes/clusters/paranoia/paranoia.yaml

...t/grid5000/sites/rennes/clusters/paravance/paravance.yaml

dev/input/grid5000/sites/sophia/clusters/sol/sol.yaml