Not so easy if the lights are on the can bus system but there are always wire cuttersA simple switch somewhere will do.
Ask a car electrician to do it, it won't cost a fortune.
However: be prepared for the display to show warnings about lighting malfunctions.
That's btw not an Ineos decision. The EU, in its infinite wisdom, has issued such a regulation. And Brexit or not, this was likely adopted by the UK.