diff --git a/class_model/src/proto/protobuf b/class_model/src/proto/protobuf
deleted file mode 160000
index d0c1a63..0000000
--- a/class_model/src/proto/protobuf
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit d0c1a633474c388b2718c2b8f2e29d335d96f783