Remove CPDF_Object::Release() in favor of direct delete

core/fpdfapi/parser/cpdf_string.h

Index: core/fpdfapi/parser/cpdf_string.h
diff --git a/core/fpdfapi/parser/cpdf_string.h b/core/fpdfapi/parser/cpdf_string.h
index d99e00c40386ba97fcc47b08933ebcd351a8f581..03284d9c5b19f43bc6f15f43ca994a5297ea1ab4 100644
--- a/core/fpdfapi/parser/cpdf_string.h
+++ b/core/fpdfapi/parser/cpdf_string.h
@@ -16,6 +16,7 @@ class CPDF_String : public CPDF_Object {
   CPDF_String();
   CPDF_String(const CFX_ByteString& str, FX_BOOL bHex);
   explicit CPDF_String(const CFX_WideString& str);
+  ~CPDF_String() override;
 
   // CPDF_Object.
   Type GetType() const override;
@@ -30,8 +31,6 @@ class CPDF_String : public CPDF_Object {
   FX_BOOL IsHex() const { return m_bHex; }
 
  protected:
-  ~CPDF_String() override;
-
   CFX_ByteString m_String;
   FX_BOOL m_bHex;
 };