Remove unused AnnotPopup::setParent

poppler/Annot.cc

@@ -1879,10 +1879,6 @@ void AnnotPopup::initialize(PDFDoc *docA, Dict *dict) {
   }
 }
 
-void AnnotPopup::setParent(Object *parentA) {
-  update ("Parent", parentA->copy());
-}
-
 void AnnotPopup::setParent(Annot *parentA) {
   const Ref parentRef = parentA->getRef();
   update ("Parent", Object(parentRef.num, parentRef.gen));

poppler/Annot.h

@@ -786,7 +786,6 @@ public:
   ~AnnotPopup();
 
   Object *getParentNF() { return &parent; }
-  void setParent(Object *parentA);
   void setParent(Annot *parentA);
   bool getOpen() const { return open; }
   void setOpen(bool openA);