Unless your users have specific interest in using that index as an hint, thereby forcing the optimizer to think that you're smart enough to trick it. Apart from this I don't find any use of that index, as it's just a duplicate index lying there, and occupying unnecessary space. I would usually let the optimizer do that work for me rather than forcing it to choose something else which might no be the best alternative, and could impact performance.

Regards,

Faisal