LAYLI FOROUDI  A Tunisian court has allowed an 81-year-old man to remove a word that marked him out as descended from slaves from his name, in the country's first ruling of its kind, his lawyer said. Tunisia was one of the first countries to abolish slavery in 1846, but critics say it has not done enough to address racism against Black Tunisians, who make up 10-15% of the population and are mostly descended from slaves. Campaigners said the case brought by Hamden Dali would open the door to others who wanted to drop the word "atig", or "liberated by", which…