Revert "[sagittaire] manually re-add empty by_id field"

...00/sites/lyon/clusters/sagittaire/nodes/sagittaire-1.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-19.json

...00/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json

...00/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json

...0/sites/lyon/clusters/sagittaire/nodes/sagittaire-31.json

...00/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json

...00/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json