FedEx’s head of its tech department is leaving the company after a monthslong investigation into claims that his unit was inflating its performance, according to a report.Sriram Krishnasamy, the company’s chief digital and information officer, and FedEx had “mutually agreed” that he would immediately step down from his role, according to a securities filing late Thursday.The longtime executive, who started at FedEx in 1997, will stay with the company as an executive adviser through October or potentially ea ...