Revert "Update CPDF_IndirectObjectHolder APIs for unique objects."

core/fpdfapi/parser/cpdf_dictionary.h

Index: core/fpdfapi/parser/cpdf_dictionary.h
diff --git a/core/fpdfapi/parser/cpdf_dictionary.h b/core/fpdfapi/parser/cpdf_dictionary.h
index 3e558127948921fe94f7fc252dd4f663c106f207..6265522997c0c39d61ee18e3e14047b3d93a5182 100644
--- a/core/fpdfapi/parser/cpdf_dictionary.h
+++ b/core/fpdfapi/parser/cpdf_dictionary.h
@@ -67,9 +67,6 @@ class CPDF_Dictionary : public CPDF_Object {
   void SetReferenceFor(const CFX_ByteString& key,
                        CPDF_IndirectObjectHolder* pDoc,
                        uint32_t objnum);
-  void SetReferenceFor(const CFX_ByteString& key,
-                       CPDF_IndirectObjectHolder* pDoc,
-                       const CPDF_Object* objnum);
   void SetRectFor(const CFX_ByteString& key, const CFX_FloatRect& rect);
   void SetMatrixFor(const CFX_ByteString& key, const CFX_Matrix& matrix);
   void SetBooleanFor(const CFX_ByteString& key, bool bValue);