diff --git a/.gitmodules b/.gitmodules
index 93e46ff..e69de29 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "testdata"]
-	path = testdata
-	url = https://github.com/html5lib/html5lib-tests.git
diff --git a/testdata b/testdata
deleted file mode 160000
index e633ddf..0000000
--- a/testdata
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit e633ddfeb0180f71238763576b1f5fdd26a7038f