message: Don't delete argless constructors
  Summary: Following what RMU does.
diff: @@ -55,6 +55,7 @@ std::vector<DexMethod*> delete_methods(
  for (auto callee : removable) {
  if (!callee->is_concrete()) continue;
  if (!can_delete(callee)) continue;
  + if (method::is_argless_init(callee)) continue;
  auto cls = type_class(callee->get_class());
  always_assert_log(cls != nullptr,
  "%s is concrete but does not have a DexClass\n",
  