Use it for animal feed
- Pigs & Chickens
Humming birds correction not a good idea for humming birds
Find an apiarist (bee keeper) and donate the sugar to them to feed their bees. Or donate it to a pig or chicken farmer to enrich their feed. Or feed the humming birds.
No you don't have to worry about the meat flavor affecting the taste of honey because that isn't what the sugar is for. An experienced apiarist will know when to feed the sugar to the bees to prevent this.
In particular, bees frequently run low on honey in the spring time (particularly if the spring thaw comes late). This can lead to colony starvation. Apiarists will feed bees sugar, either solid or as a syrup to prevent this. Sugar is also widely used to stimulate a colony to increase brood rearing.
The two main things that would be of concern for an apiarist is the presence of salt (a little is ok, a lot is toxic to bees), or the fermentation of yeast (again toxic to bees.) However any natural flavors that might have been extracted from the meat should be of little consequence to the bees.
Pigs and Chickens
As far as pig or chicken farmers go. Both pigs and chickens will eat just about anything. While no one would feed their pigs or chickens just sugar both absolutely love sugar. It's probably more feasible for a pig farmer as 10kg is easily consumed by just a few pigs as an addendum to their normal diet. For chickens it would depend on the size of flock. The primary concern is here is if it considered an animal by product there can be restrictions on where you feed it. For example if it is a beef byproduct you would never feed it cows.
Sugar water is all that is really in humming bird feeders. Any meat flavor may or may not make an impact but i doubt they would care.