Remove BlackHole (#371)

Author: offa

README.md

@@ -496,7 +496,6 @@ A list of **Free** and **Open Source Software** ***(FOSS)*** for **Android** –
 ### • Music & Audio Player
 
 * [**Auxio**](https://github.com/OxygenCobalt/Auxio) <sup>**[[F-Droid](https://f-droid.org/app/org.oxycblt.auxio)]**</sup>
-* [**BlackHole**](https://github.com/Sangwan5688/BlackHole) <sup>**[[F-Droid](https://f-droid.org/app/com.shadow.blackhole)]**</sup>
 * [**Dialog Music Player**](https://github.com/VishnuSanal/DialogMusicPlayer) <sup>**[[F-Droid](https://f-droid.org/app/phone.vishnu.dialogmusicplayer)]**</sup>
 * [**Fossify Music Player**](https://github.com/FossifyOrg/Music-Player) <sup>**[[F-Droid](https://f-droid.org/app/org.fossify.musicplayer)]**</sup>
 * [**Gramophone**](https://github.com/AkaneTan/Gramophone) <sup>**[[F-Droid](https://f-droid.org/app/org.akanework.gramophone)]**</sup>