Shut Up Narrator

Removes the narrator by setting the narrator instance to EMPTY which is effectively no-op. Also removes the library check that causes a huge log dump when the native library is not found (which happens on basically all my linux setups because I don't need a TTS).

This mod is mainly made for 1.21.7 because I'm lazy to test it across a number of versions, but it's a very simple 2-mixin mod that should work on most versions. Just download the mod and see if it works or not. If you want to be helpful, tell me about the version it didn't work in on github issues so that I can remove it from the range of supported versions.