By Martyn Herman LONDON (Reuters) -Emma Raducanu’s Wimbledon hopes were ruthlessly crushed on Centre Court by France’s Caroline Garcia as the golden girl of British sport suffered a 6-3 6-3 second-round loss on Wednesday. The 19-year-old, who rocketed to fame with her spellbinding U.S. Open triumph last year, did not play badly but had no answer to Garcia’s superior firepower. Garcia, a former top-10 player with three grasscourt titles on her CV, dominated the opening set as her aggressive return game and heavy serving unsettled the 10th-seeded Raducanu. She continued blazing away in the secon…