Function mpl_auction_house::auction_house::cancel

pub fn cancel<'info>(
    ctx: Context<'_, '_, '_, 'info, Cancel<'info>>,
    buyer_price: u64,
    token_size: u64
) -> Result<()>

Cancel a bid or ask by revoking the token delegate, transferring all lamports from the trade state account to the fee payer, and setting the trade state account data to zero so it can be garbage collected.