A double-amputee Marine veteran with prosthetics legs was dealt a humiliating “blow” when a Delta flight crew forced him to move from an exit row seat – despite being built like a linebacker and serving as a Long Island cop, a new lawsuit claims. Suffolk County cop Matias Ferreira, 36, was on a plane ready for takeoff at JFK Airport on May 17 – but Delta staff allegedly told him he couldn’t stay in the exit row, which is reserved for fliers who could need to jump into action in the event of an