diff --git a/utils-untyped.rkt b/utils-untyped.rkt
index 8d2b710..705fdd6 100644
--- a/utils-untyped.rkt
+++ b/utils-untyped.rkt
@@ -42,11 +42,7 @@
                [boolean-power (-> number? (listof (listof boolean?)))]
                [boolean-power/stream (-> number? (stream/c (listof boolean?)))]
                [any->01 (-> any/c (or/c 0 1))]
-               [01->boolean (-> (or/c 0 1) boolean?)])
- ;; Contracts
- (contract-out [variable-mapping? contract?]
-               [string-variable-mapping? contract?]
-               [general-pair/c (-> contract? contract? contract?)]))
+               [01->boolean (-> (or/c 0 1) boolean?)]))
 
 (module+ test
   (require rackunit))