Why not just get the
Hide Quest Arrow addon? True, it's on Curse.com instead of WoWInterface.com, and it's out-of-date, but, it still works just fine.
__________________
Ahhhh, the vagueries of the aging mind. Wait.... What was I saying?
Carbonite <----- GitHub main module (Maps ONLY) download link. The other modules are also available on GitHub.
Carbonite-CLASSIC<----- GitHub link to Carbonite Classic. Thanks to ircdirk for this!