diff --git a/tools/bk_tools b/tools/bk_tools
deleted file mode 160000
index 5a880b49..00000000
--- a/tools/bk_tools
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 5a880b4978b9c8c7954ef0dc5d3faeeca754229b