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

core/fxge/dib/fx_dib_engine_unittest.cpp

Index: core/fxge/dib/fx_dib_engine_unittest.cpp
diff --git a/core/fxge/dib/fx_dib_engine_unittest.cpp b/core/fxge/dib/fx_dib_engine_unittest.cpp
index b7c79c390a2dab2965a189004b21e3e44935a018..eca87c14d8e292000dee9139ef8a2db8b3fbf039 100644
--- a/core/fxge/dib/fx_dib_engine_unittest.cpp
+++ b/core/fxge/dib/fx_dib_engine_unittest.cpp
@@ -15,11 +15,10 @@
 
 TEST(CStretchEngine, OverflowInCtor) {
   FX_RECT clip_rect;
-  std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<CPDF_Dictionary>> dict_obj(
-      new CPDF_Dictionary());
+  std::unique_ptr<CPDF_Dictionary> dict_obj(new CPDF_Dictionary());
   dict_obj->SetFor("Width", new CPDF_Number(71000));
   dict_obj->SetFor("Height", new CPDF_Number(12500));
-  std::unique_ptr<CPDF_Stream, ReleaseDeleter<CPDF_Stream>> stream(
+  std::unique_ptr<CPDF_Stream> stream(
       new CPDF_Stream(nullptr, 0, dict_obj.release()));
   CPDF_DIBSource dib_source;
   dib_source.Load(nullptr, stream.get(), nullptr, nullptr, nullptr, nullptr,