remove gitlink
diff --git a/mpw_precheck b/mpw_precheck
deleted file mode 160000
index 2f2f426..0000000
--- a/mpw_precheck
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 2f2f4261ed2b59f8d21ac38fbffa7ccc6f7b9729