[all_sites] metrics: remove DCGM_FI_DEV_GPU_UTIL metric no longer available (#14511)

data/grid5000/sites/grenoble/clusters/drac/drac.json

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

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

data/grid5000/sites/lyon/clusters/gemini/gemini.json

data/grid5000/sites/lyon/clusters/neowise/neowise.json

data/grid5000/sites/lyon/clusters/sirius/sirius.json

data/grid5000/sites/nancy/clusters/graffiti/graffiti.json

data/grid5000/sites/nancy/clusters/graphique/graphique.json

data/grid5000/sites/nancy/clusters/grat/grat.json

data/grid5000/sites/nancy/clusters/grele/grele.json

data/grid5000/sites/nancy/clusters/grimani/grimani.json

data/grid5000/sites/nancy/clusters/grouille/grouille.json

data/grid5000/sites/nancy/clusters/grue/grue.json

data/grid5000/sites/nancy/clusters/gruss/gruss.json

...t/grid5000/sites/grenoble/clusters/drac/drac_metrics.yaml

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

...d5000/sites/lille/clusters/chifflot/chifflot_metrics.yaml

...t/grid5000/sites/lyon/clusters/gemini/gemini_metrics.yaml

...grid5000/sites/lyon/clusters/neowise/neowise_metrics.yaml

...t/grid5000/sites/lyon/clusters/sirius/sirius_metrics.yaml