diff --git a/extern/adpcm-xq b/extern/adpcm-xq
deleted file mode 160000
index 6220fed76..000000000
--- a/extern/adpcm-xq
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 6220fed7655e86a29702b45dbc641a028ed5a4bf