If the governing body of the city shall determine by a two-thirds vote as provided in section 40-46-23 that the employees’ pension or police pension plan be discontinued, the plan shall be discontinued in such city and the governing body shall proceed to liquidate the pension fund created under such plan. Liquidation shall be accomplished by returning to each employee still in the employ of the city ten days after the date of the adoption of the resolution, provided for in section 40-46-23, the entire amount which has been deducted from the employee’s salary as an assessment or membership fee and then by payment of pension claims theretofore allowed in the same amounts as are then in effect until the death or disqualification of the pension claimant, and thereafter continuing such payments as would have accrued to survivors of such pension claimant under the local pension provisions if the plan had been continued. If the fund is insufficient to return the amount to which each employee is entitled as provided herein and to pay such claims in full, the governing body shall make an annual tax levy, which shall be in addition to any other tax levies authorized by law, in an amount sufficient to assure the payment in full of the pension claims theretofore allowed. If the fund exceeds the amount required to satisfy such returns and such claims, such excess shall be placed in the general fund of the city.