diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 8505393bf..000000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "vendor/proto/api-common-protos"]
-	path = vendor/proto/api-common-protos
-	url = https://github.com/googleapis/api-common-protos