WASHINGTON/MEXICO CITY (Reuters) - The United States and Mexico abruptly canceled plans to publish the text of their trade agreement on Friday to give Canada and the Trump administration more time to resolve their differences and save the North American Free Trade Agreement as a trilateral pact. Mexico's Economy Minister Ildefonso Guajardo delivers a summary of NAFTA negotiations to Mexican Senator Ricardo Monreal during a meeting with senators at the Senate building in Mexico City, Mexico September 28, 2018. REUTERS/Henry RomeroMexican Economy Minister Ildefonso Guajardo said the text was delayed due to a “very . . .