Fix unused variable warning in release mode.

libdeno/binding.cc

@@ -45,7 +45,7 @@ void DeleteDataRef(Deno* d, int32_t req_id) {
   auto async_data_map = d->async_data_map.Get(d->isolate);
   auto req_id_v = v8::Integer::New(d->isolate, req_id);
   auto maybe_deleted = async_data_map->Delete(context, req_id_v);
-  DCHECK(maybe_deleted.IsJust());
+  CHECK(maybe_deleted.IsJust());
 }
 
 // Extracts a C string from a v8::V8 Utf8Value.