British rapper M.I.A. filed a multi-million-dollar lawsuit last week against Kid Cudi, accusing him of dropping her from his tour “to generate publicity” for shows that’ve “struggled with ticket sales.” Kid Cudi, whose legal name is Scott Mescudi, announced after a show in Dallas last month that the “Paper Planes” rapper would no longer appear on the “Rebel Ragers” tour because of her “offensive remarks that” had upset fans. But in a federal lawsuit filed in Los Angeles on Friday, M.I.A. —