BERLIN, Jan 10 (Reuters) - German food delivery group Delivery Hero (DHER.DE) said on Monday it had sold $150 million worth of its stake in the Latin-American delivery company Rappi, close to the entire capital it had invested in the company. Delivery Hero still holds just under 8% in Rappi on a fully diluted basis, valued at over $400 million, it said, adding that it was planning to monetize the remaining Rappi shares over time as it aims to focus on other investments.