message: Do cache the sync metadata realms
  A bunch of the sync metadata tests rely on the cache and it's probably harmless.
diff: @@ -88,7 +88,6 @@ SyncMetadataManager::SyncMetadataManager(std::string path,
  Realm::Config config;
  config.automatic_change_notifications = false;
  - config.cache = false;
  config.path = path;
  config.schema = make_schema();
  config.schema_version = SCHEMA_VERSION;
  