Minor cleanup in phone.
Minor cleanup in phone.

Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism,Winawer/exercism