diff --git a/boil_kettle/src/Arduino-PID-Library b/boil_kettle/src/Arduino-PID-Library
deleted file mode 160000
index 9b4ca0e..0000000
--- a/boil_kettle/src/Arduino-PID-Library
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 9b4ca0e5b6d7bab9c6ac023e249d6af2446d99bb