72.1. To harmonize the by-laws adopted by the borough councils under section 115, the city council may make a by-law prescribing standards and amending those by-laws. In that respect, the city council has all the powers and is subject to all the obligations assigned to or imposed on the city in matters of land use planning and development by the Act respecting land use planning and development (chapter A‐19.1), this Act or any other Act. A by-law adopted under the first paragraph need not be submitted for consultation to ward councils and, notwithstanding the third paragraph of section 123 of the Act respecting land use planning and development, is not subject to approval by way of referendum.