ELAINE LIES and KIYOSHI TAKENAKA GOLD medal Paralympian Rina Akiyama pulled out of the Olympic torch relay at the eleventh hour this month, worried about drawing crowds that might spread the coronavirus, the latest in a series of cancellations that have plagued the event. The withdrawal by Akiyama and more than a dozen celebrities from the relay, which starts Thursday, underscores the challenges facing organisers of one of the world's most complex events, hosted by a nation where vaccinations have barely begun, in the midst of a yet-untamed pandemic. "I'm a former athlete and know how important the Olympics and…