AUSTIN, Texas — Lance Armstrong has cut formal ties with his cancer-fighting charity to avoid further damage brought by doping charges and being stripped of his seven Tour de France titles. Armstrong resigned from the board of directors for Livestrong on Nov. 4. He had previously resigned as chairman from the charity he founded Oct. 17 but had kept a seat on the board. The US Anti-Doping Agency ordered Armstrong banned from the sport for life and stripped of his titles. Livestrong said Monday Armstrong “remains the inspiration,” and is still its largest donor with nearly $7m over the years. — AP