(Bloomberg) -- Amazon.com Inc. has abandoned its planned $1.4 billion acquisition of Roomba maker iRobot Corp. after clashing with European Union regulators who had threatened to block the deal. Most Read from BloombergTraders Line Up for ‘Once-in-a-Generation’ Emerging Markets BetBlackstone Is Building a $25 Billion Empire of Power-Hungry Data CentersTrump Cash Stockpile at Risk From $450 Million Dual VerdictsEvergrande Set for Liquidation as China Property Crisis Drags OnAmazon Drops $1.4 Bill