San Francisco: David Drummond, the chief legal officer at Alphabet Inc., has stepped down from Uber Technologies Inc.’s board of directors as the two companies move further into each other’s territories. Drummond joined the board in 2013 when GV, the venture capital arm of Alphabet formerly known as Google Ventures, led a $258 million round of financing for Uber. It remains GV’s largest investment, and the two companies worked together on projects, including the ability to call a car through Google Maps. However, relations between Alphabet’s Google unit and Uber have become strained in recent years.