message: gltfio: fix warning in release build.
diff: @@ -52,7 +52,7 @@ public:
  if (UTILS_UNLIKELY(mManager.hasComponent(entity))) {
  destroy(entity);
  }
  - Instance ci = mManager.addComponent(entity);
  + UTILS_UNUSED_IN_RELEASE Instance ci = mManager.addComponent(entity);
  assert_invariant(ci);
  }
  