Ed Sheeran's legal battle with Marvin Gaye co-writer Ed Townsend will continue after a judge cancelled an upcoming jury trial scheduled for September. In 2016, the U.K. native was sued by Townsend, who claimed that Sheeran had plagiarized significant portions of his and Marvin Gaye's 1973 song "Let's Get It On" on his 2014 hit "Thinking Out Loud." On…