Define edit.tty.Termios entirely in terms of C.struct_termios
Define edit.tty.Termios entirely in terms of C.struct_termios

syscall and unsafe imports are no longer needed.

elves/elvish,elves/elvish,ke7ofi/elvish,elves/elvish,ke7ofi/elvish,beni55/elvish,CodyGuo/elvish,elves/elvish,beni55/elvish,elves/elvish,CodyGuo/elvish