diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index f0e0f381425..43e850c65e8 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -90,10 +90,6 @@ namespace {
         return false;
       return true;
     }
-
-    /*bool operator!=(const Expression &other) const {
-      return !(*this == other);
-    }*/
   };
 
   class ValueTable {