Three-time Olympic champion Matthias Mayer of Austria surprised the alpine skiing community on Thursday by announcing his retirement with immediate effect. Mayer, 32, said after the course inspection for the day’s World Cup super-g in Bormio, Italy, that he was not even contesting the race and quitting right away. “I have been thinking for the last few days and I have to say, for me it is time to retire from the alpine World Cup,” Mayer told Austrian public broadcasters ORF. “This was my last inspection, I have had enough. “I would like to thank my sponsors and the ÖSV [Austrian Ski Associatio…