By Zahna Eklund We’ve all got restaurant chains we’re not a fan of, but maybe not enough to write a review this scathing. Last week, famed food critic Giles Coren wrote a review of a popular restaurant chain, and his words have now gone viral after he branded the chain the “worst in the world” and said the food was “utterly hideous”. And which chain was he reviewing? German Doner Kebab, a Scotland-based fast food chain with more than 100 restaurants around the world. German Doner Kebab is owned by Scots businessman Athif Sarwar and has headquarters based in Glasgow, but when Coren visited a Lo…