§ 702. Laws repealed. Chapter eight hundred sixty-two of the laws of nineteen hundred thirty-seven, entitled "An act in relation to providing alternative forms of county government, constituting chapter eleven-a of the consolidated laws, " and all acts amendatory thereof or supplemental thereto, constituting the optional county government law, are hereby repealed, except as otherwise provided herein. Such repeal shall take effect May fifteenth, nineteen hundred fifty-four.