Function polkadot_node_subsystem_util::runtime::get_disabled_validators_with_fallback

pub async fn get_disabled_validators_with_fallback<Sender: SubsystemSender<RuntimeApiMessage>>(
    sender: &mut Sender,
    relay_parent: Hash,
) -> Result<Vec<ValidatorIndex>, Error>

Returns disabled validators list if the runtime supports it. Otherwise logs a debug messages and returns an empty vec. Once runtime ver DISABLED_VALIDATORS_RUNTIME_REQUIREMENT is released remove this function and replace all usages with request_disabled_validators