I wouldn’t. Well, certainly not before thinking about the options! I’m like JBM, I think about it first.
First off, decide how you wish to over-winter them. If on extra-deeps (14 x 12) they are very unlikely to need more than the brood box filled with stores. If on deeps, they may only need a full brood box of stores, going into winter.
Should, perhaps, have thought ahead and concentrated any partly capped frames on strong colonies which could have capped them?
If the moisture is low enough, extract and do with it whatever you wish. What time of day did you remove the supers - it can make a large difference to the water content - think about it. Were they using the stores at the time? Did you do a ‘shake test’? Do you have a refractometer?
If not intending feeding sugar syrup, the boxes could be placed under the brood boxes (with time for the bees to move the stores up, before clustering).
If you extract and the water content is marginal, it could be dried (see other posts on this), used for making mead, or feed back to the bees. It will not ferment if stored in the freezer, so could be kept for either self consumption, or other use, later.
Enough to think about? Might be more options for your particular situation. It is only the beginning of September, after all.