By Andy Silvester A Hong Kong court has banned the pro-democracy anthem Glory to Hong Kong in a further sign of China’s chilling attack on free speech in the once separate territory. Whilst a court in Hong Kong’s nominally independent legal system last year booted out the attempt to ban the song, citing free speech concerns, three court of appeal judges sided Wednesday with the authorities, according to local reports. The public rationale for the move was to prevent the song Glory to Hong Kong – used throughout protests against Beijing’s growing influence in the territory – being mixed up at i…