In case the council-manager plan of government is discontinued or repealed by a majority vote of the qualified electors of such city, voting in an election for that purpose, as provided in Section 21-9-9, the next municipal election thereafter shall be conducted for such officials as are provided by law for such city under and according to that form of government under which it operated prior to the time that it adopted the council-manager plan of government. The elected officials then holding office under the council-manager plan shall continue in office until their duly elected successors under said form of government under which the municipality operated prior to the adoption of the council-manager plan shall take office. On the date on which such newly elected officials shall take office, as provided by law, the employment of such manager as shall have theretofore been employed by the council under the council-manager plan shall terminate, and all offices created under the provisions of this chapter shall terminate. Thereafter the municipality shall be governed by the general law applicable according to the form of government under which it had operated prior to adoption of the council-manager plan. The council or board shall have power by ordinance not inconsistent herewith to provide for the orderly transition from the one form of government to the other, in the same manner as is provided in Section 21-9-7. A city which has adopted the council-manager plan and subsequently discontinues it, as herein provided, may readopt it by following the same procedure as that herein set forth for its original adoption, and it may likewise thereafter so discontinue the same.