Two-time Olympic and multiple world figure skating champion Katarina Witt struggled to keep her emotions in check Thursday as she criticized the treatment of 15-year-old Russian Kamila Valieva at the Beijing Games. Valieva was permitted to contest the women’s individual competition after a provisional doping suspension was lifted but finished fourth, having led the short programme, and was seen breaking down in an error-strewn free skate. “What has happened now is the very worst,” Witt said as an analyst on German broadcaster ARD. “She fell apart because of it.” Witt was continually fighting o…