True. Until 1976, London taxi (hackney carriage) drivers were legally required to carry:
The law (Town Police Clauses Act 1847, plus earlier statutes) dated to the horse-drawn cab era. It ensured drivers could feed their horses during long waits at stands or in emergencies.
The London Cab Order 1976 (Statutory Instrument 1976/183) finally removed the clause. Drivers celebrated by ceremonially burning hay bales.
Other archaic requirements (e.g., carrying a lantern, a whip) were also dropped. Today's "Knowledge" test and wheelchair accessibility rules are the modern equivalents.