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

testing/libfuzzer/pdf_codec_jbig2_fuzzer.cc

Index: testing/libfuzzer/pdf_codec_jbig2_fuzzer.cc
diff --git a/testing/libfuzzer/pdf_codec_jbig2_fuzzer.cc b/testing/libfuzzer/pdf_codec_jbig2_fuzzer.cc
index 902977563405a3291931d2eeea30d31bb95d6f39..1db39751db0380083d7d0dc99bbaf7b8c81f25a0 100644
--- a/testing/libfuzzer/pdf_codec_jbig2_fuzzer.cc
+++ b/testing/libfuzzer/pdf_codec_jbig2_fuzzer.cc
@@ -29,8 +29,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   if (!bitmap->Create(width, height, FXDIB_1bppRgb))
     return 0;
 
-  std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> stream(
-      new CPDF_Stream);
+  std::unique_ptr<CPDF_Object> stream(new CPDF_Stream);
   stream->AsStream()->SetData(data, size);
   CPDF_StreamAcc src_stream;
   src_stream.LoadAllData(stream->AsStream(), true);