1 files changed, 0 insertions, 12 deletions
diff --git a/lib/arel/visitors/dot.rb b/lib/arel/visitors/dot.rb
index c515cbe220..eab5e4afdc 100644
--- a/lib/arel/visitors/dot.rb
+++ b/lib/arel/visitors/dot.rb
@@ -28,10 +28,6 @@ module Arel
       end
 
       private
-      def visit_Arel_Nodes_Grouping o
-        visit_edge o, "expr"
-      end
-
       def visit_Arel_Nodes_Ordering o
         visit_edge o, "expr"
         visit_edge o, "direction"
@@ -55,10 +51,6 @@ module Arel
         visit_edge o, "distinct"
       end
 
-      def visit_Arel_Nodes_On o
-        visit_edge o, "expr"
-      end
-
       def visit_Arel_Nodes_Values o
         visit_edge o, "expressions"
       end
@@ -80,10 +72,6 @@ module Arel
         visit_edge o, "wheres"
       end
 
-      def visit_Arel_Nodes_UnqualifiedColumn o
-        visit_edge o, "attribute"
-      end
-
       def unary o
         visit_edge o, "expr"
       end