​Showing absolutely no remorse, a Brooklyn farebeater who ​shot a ​rookie ​cop ​who pulled him off a bus coldly answered, “F— it,” when ​a judge asked if he had anything to say before he sentenced him Wednesday. Rashaun Robinson, 29,​ ​shot​ ​rookie cop James Li, 26,​ ​in each le​g ​after the cop​ ​grabbed​ ​him off a city bus in Flatbush on Feb​. 26. He​ pleaded guilty and ​was sentenced to 25 years behind bars. Afterwards, Li coolly assessed Robinson’s