unicode.normalize: cleanup usings.
unicode.normalize: cleanup usings.

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