Remove unused superhero constructor

pkg/deesee/model.go

@@ -115,11 +115,6 @@ func SearchByPowers(heros []*Superhero, powers []string) (r []*Superhero) {
 	return
 }
 
-// NewSuperhero creates a new superhero
-func NewSuperhero() *Superhero {
-	return &Superhero{}
-}
-
 // FindByName from superheros list
 func FindByName(heros []*Superhero, name string) *Superhero {
 	for _, hero := range heros {