I think you'd be fine if you just cook it for less time meriad, it would be a shame not to use it now
Start it off as intended, minus carrots (not really included for boeuf bourguignon) and with the sauteéd mushrooms & shallots (or sliced onion) an hour or so before the end, but only give it maybe 5 hours cooking.
It depends a bit on the thickness of the meat, if it's thin leave it in whole slices
For a bit of added loveliness if you have it also fry at the beginning some chopped streaky bacon, and/or add just one tiny strip of orange peel