BROOKLYN - The man arrested in connection to one of the largest fires in Brooklyn is being sentenced Wednesday, but not for arson.A plea deal cleared Leszek Kuczera, 60, of charges that he sparked the fire in May that destroyed the historic Greenpoint Terminal Market. Kuczera pleaded guilty to criminal mischief. He's being sent by a judge to an upstate alcohol-treatment center for eight months.Police said Kuczera, who was homeless, accidentally started the 10-alarm fire as he tried burning the building's insulation off copper wiring.