Remove extra memmove declaration.
Remove extra memmove declaration.

caseyc37/pygame_cffi,GertBurger/pygame_cffi,caseyc37/pygame_cffi,caseyc37/pygame_cffi,GertBurger/pygame_cffi,CTPUG/pygame_cffi,CTPUG/pygame_cffi,GertBurger/pygame_cffi,GertBurger/pygame_cffi,CTPUG/pygame_cffi