Irving Picard, the trustee liquidating Bernard L. Madoff’s bankrupt brokerage, asked a judge to reject customer objections to a second payment, saying their arguments would cut the payout by $1 billion. The Madoff trustee, who has so far paid the confidence man’s customers $333 million, said last month a second payment might be as large as $2.4 billion. Some customers objected because they are fighting in court for 9 percent interest.