Wikidata people know how to remove from Wikidata. And "Marie-Claude Mallet-Lemaire" is no more in Wikidata.

But to delete from Google, you need Google people, not Wikidata people.

That's what we have been trying to explain.

Wikidata people may be easier to reach than Google people, but that doesn't make Wikidata people the appropriate contact to remove content from Google.

Yesterday I suggested you to use the button "Lancer la demande de suppresion" from https://support.google.com/websearch/answer/9673730?hl=fr to request Google to delete "Marie-Claude Mallet-Lemaire".

Good luck