1 files changed, 0 insertions, 4 deletions
diff --git a/lib/util.ml b/lib/util.ml
index e2447b005e..ae8119ced0 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -82,10 +82,6 @@ module Set = CSet
 
 module Map = CMap
 
-(* Stacks *)
-
-module Stack = CStack
-
 (* Matrices *)
 
 let matrix_transpose mat =