Function check_bip30_network 

pub fn check_bip30_network(
    block: &Block,
    utxo_set: &HashMap<OutPoint, Arc<UTXO>, FxBuildHasher>,
    bip30_index: Option<&HashMap<[u8; 32], usize, FxBuildHasher>>,
    height: u64,
    network: Network,
    coinbase_txid: Option<&[u8; 32]>,
) -> Result<bool, ConsensusError>

Convenience: BIP30 check using network (builds activation table).