rosetta-code.image-noise: use delete-all.
rosetta-code.image-noise: use delete-all.

tgunr/factor,mrjbq7/factor,tgunr/factor,bpollack/factor,factor/factor,mrjbq7/factor,AlexIljin/factor,bjourne/factor,tgunr/factor,factor/factor,tgunr/factor,nicolas-p/factor,bjourne/factor,factor/factor,bjourne/factor,AlexIljin/factor,mrjbq7/factor,bpollack/factor,bpollack/factor,factor/factor,bjourne/factor,nicolas-p/factor,bjourne/factor,tgunr/factor,AlexIljin/factor,AlexIljin/factor,nicolas-p/factor,bjourne/factor,AlexIljin/factor,factor/factor,nicolas-p/factor,bpollack/factor,bpollack/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,bjourne/factor,nicolas-p/factor,mrjbq7/factor,nicolas-p/factor,AlexIljin/factor,factor/factor,tgunr/factor,nicolas-p/factor,mrjbq7/factor,mrjbq7/factor