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

testing/libfuzzer/pdf_streamparser_fuzzer.cc

Index: testing/libfuzzer/pdf_streamparser_fuzzer.cc
diff --git a/testing/libfuzzer/pdf_streamparser_fuzzer.cc b/testing/libfuzzer/pdf_streamparser_fuzzer.cc
index 77580a91f81b17b0e5b24a33810b2fa3a94ec177..a0287c935ac4152bc5126f389eecfe1d29e4cfbd 100644
--- a/testing/libfuzzer/pdf_streamparser_fuzzer.cc
+++ b/testing/libfuzzer/pdf_streamparser_fuzzer.cc
@@ -10,7 +10,7 @@
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   CPDF_StreamParser parser(data, size);
   while (CPDF_Object* pObj = parser.ReadNextObject(true, 0))
-    pObj->Release();
+    delete pObj;
 
   return 0;
 }