Shopify COO Kaz Nejatian. Ramsey Cardy/Sportsfile for Collision via Getty ImagesShopify will cease using Shopify Plus as a stand-alone brand, focusing on a unified brand.However, Shopify Plus will still be available as a plan, with no change in features. "We build, market, and sell Shopify," COO Kaz Nejatian wrote in a leaked internal memo.Shopify plans to stop referring to its Shopify Plus offering as a stand-alone brand, according to an intern…