remove github.com/tcolgate/mp3
ref: more than 1 year without update
sad to have to remove libraries
@@ -124,7 +124,6 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [malgo](https://github.com/gen2brain/malgo) - Mini audio library.
* [minimp3](https://github.com/tosone/minimp3) - Lightweight MP3 decoder library.
* [mix](https://github.com/go-mix/mix) - Sequence-based Go-native audio mixer for music apps.
-* [mp3](https://github.com/tcolgate/mp3) - Native Go MP3 decoder.
* [music-theory](https://github.com/go-music-theory/music-theory) - Music theory models in Go.
* [Oto](https://github.com/hajimehoshi/oto) - A low-level library to play sound on multiple platforms.
* [PortAudio](https://github.com/gordonklaus/portaudio) - Go bindings for the PortAudio audio I/O library.
