I am very certain it will never be used by me.

I wonder if there is a way to do away with it during production of the car?

 

Regrets.

I see the wiper is an option and not standard as mistakenly thought by me.

 

For those of us who drive in snow, the rear wiper is good to have, particularly when you're stuck in traffic. Probably not so good where you live. In Israel, I've seen some people take the front wiper blades off their cars in summer to prevent deterioration during the prolonged periods they aren't used.
I'm always surprised more owners don't drive their cars year round. C4's are terrific snow cars. My TTx50 seems to continue that tradition, but the ground clearance may be a problem when accumulation occurs. AS

 

Most useful with AWD (C4, C4S or Turbo) since rain does not slow you down as much as a C2. Lets you check whats behind or persuing you easier.