No Beehive Spawn

I have nothing against bees or bee nests.
This mod was just created because disabling bee spawning causes bee nests to continually try to spawn bees, which causes annoying sounds and probably also some server load.
The real use case for this mod is small, but real enough for me to create this mod myself.

It is a very simple mixin, and as such should not impact performance even a single bit.