Remove unreachable code from buffer.win.
Remove unreachable code from buffer.win.

Presumably this was intended as an alternate implementation but appears
never to have been used.

airodactyl/dactyl,madand/pentadactyl-pm,airodactyl/dactyl,madand/pentadactyl-pm,5digits/dactyl,invl/dactyl,invl/dactyl,airodactyl/dactyl,5digits/dactyl,5digits/dactyl,airodactyl/dactyl,madand/pentadactyl-pm,madand/pentadactyl-pm,madand/pentadactyl-pm,invl/dactyl,5digits/dactyl,invl/dactyl,invl/dactyl,madand/pentadactyl-pm,invl/dactyl,5digits/dactyl,airodactyl/dactyl,5digits/dactyl,airodactyl/dactyl