child pornography lawsuit filed by the grown-up naked baby featured on the cover of Nirvana’s album “Nevermind” smells like an “absurd” cash grab, lawyers for the band say.A motion to dismiss the litigation was filed on behalf of Kurt Cobain’s estate and the surviving members of Nirvana in a California federal court Wednesday.Spencer Elden, 30, accused the Seattle grunge outfit of telling him to “Come As You Are” without consent over the summer, after being photographed swimming naked in a pool