Remove "Song"

Author: per1234

registry.txt

@@ -5625,5 +5625,4 @@ https://github.com/khoih-prog/ESP32_SC_W6100_Manager.git|Contributed|ESP32_SC_W6
 https://github.com/khoih-prog/ESP32_W6100_Manager.git|Contributed|ESP32_W6100_Manager
 https://github.com/lualtek/cubecell-device-lib.git|Contributed|LualtekCubecell
 https://github.com/Bexin3/Speeduino.git|Contributed|Speeduino
-https://github.com/weedmanu/Song.git|Contributed|Song
 https://github.com/SF433/ILIB.git|Contributed|ILIB