Fix memory leak in Offloading API (#161430)

Fix or the failing Sanitizer buildbots from PR:
#143342

Author: david-salinas

llvm/lib/Object/OffloadBundle.cpp

@@ -120,14 +120,15 @@ OffloadBundleFatBin::create(MemoryBufferRef Buf, uint64_t SectionOffset,
   if (identify_magic(Buf.getBuffer()) != file_magic::offload_bundle)
     return errorCodeToError(object_error::parse_failed);
 
-  OffloadBundleFatBin *TheBundle = new OffloadBundleFatBin(Buf, FileName);
+  std::unique_ptr<OffloadBundleFatBin> TheBundle(
+      new OffloadBundleFatBin(Buf, FileName));
 
   // Read the Bundle Entries
   Error Err = TheBundle->readEntries(Buf.getBuffer(), SectionOffset);
   if (Err)
     return Err;
 
-  return std::unique_ptr<OffloadBundleFatBin>(TheBundle);
+  return TheBundle;
 }
 
 Error OffloadBundleFatBin::extractBundle(const ObjectFile &Source) {