diff --git a/hooks/post_checkout b/hooks/post_checkout
deleted file mode 100755
index 1c6f495cf..000000000
--- a/hooks/post_checkout
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/bash
-# Docker hub does a recursive clone, then checks the branch out,
-# so when a PR adds a submodule (or updates it), it fails.
-git submodule update --init