diff --git a/graylog-plugin-function-strlen b/graylog-plugin-function-strlen
deleted file mode 160000
index d0d8773..0000000
--- a/graylog-plugin-function-strlen
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit d0d877357a2c809777328d131758e1b1601fb78e