22. Any licence in respect of any hackney carriage or any driver of a hackney carriage issued by the council of the borough of Romford or the urban district of Hornchurch under the provisions of the Town Police Clauses Act 1847 as incorporated with the Public Health Act 1875 shall cease to have effect upon the grant under the Metropolitan Public Carriage Act 1869 of a licence in respect of such carriage or driver, but shall otherwise continue in force for the period for which it was granted.