Remove CPDF_Object::GetConstString and overrides

core/fpdfapi/fpdf_parser/cpdf_array.cpp

Index: core/fpdfapi/fpdf_parser/cpdf_array.cpp
diff --git a/core/fpdfapi/fpdf_parser/cpdf_array.cpp b/core/fpdfapi/fpdf_parser/cpdf_array.cpp
index e2279c8e1dc07fb3f9a1f713c7a1b17899a28df0..d588f339a7b45c09347e504b355dc8326025cb4a 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_array.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_array.cpp
@@ -92,12 +92,6 @@ CFX_ByteString CPDF_Array::GetStringAt(size_t i) const {
   return m_Objects.at(i)->GetString();
 }
 
-CFX_ByteStringC CPDF_Array::GetConstStringAt(size_t i) const {
-  if (i >= m_Objects.size())
-    return CFX_ByteStringC();
-  return m_Objects.at(i)->GetConstString();
-}
-
 int CPDF_Array::GetIntegerAt(size_t i) const {
   if (i >= m_Objects.size())
     return 0;