TOKYO—A sumo wrestler that may have spooked the horses has been knocked out of the Olympic equestrian ring. The statue and a nearby patch of cherry trees that riders thought might be startling the animals during the individual jumping event were among the obstacles swapped out for the start of the team competition Friday night. Officials say designer Santiago Varela had planned on removing the sumo wrestler even before riders said the life-sized rikishi might be rankling their animals. Several pairings in the early stages of Tuesday’s individual qualifying stopped short near the sumo wrestler, who was positioned next to the 10th obstacle on the 14-jump course. The hurdle was located right after a sharp turn, and the wrestler’s wedgied backside was the first thing in sight for horse and human. “As you come around, you see a big guy’s (butt),” British rider Harry Charles said, adding “I did notice four or …