By Dana Hull | Bloomberg Elon Musk deleted a controversial tweet that made a satirical comparison between Canadian Prime Minister Justin Trudeau and Adolf Hitler. Musk, the chief executive officer of Tesla Inc. and the world’s richest person, did not respond to a request for comment. A spokesperson for Twitter said the social-media company “did not take enforcement action” on the tweet. Musk, 50, was replying to a post by cryptocurrency trade publication CoinDesk about Trudeau’s emergency orders aimed at cutting off funds to protesters who have blocked border crossings and camped out in Canada’s capital. Musk tweeted a photo...