WASHINGTON — A federal judge on Monday declined to delay the upcoming trial of Steve Bannon, a one-time adviser to former President Donald Trump who faces contempt of Congress charges after refusing for months to cooperate with the House committee investigating the Jan. 6 Capitol insurrection.Bannon is still scheduled to go on trial next week despite telling the House committee late Saturday that he is now prepared to testify. It’s unclear whether Bannon will again decline to appear before the committee with …