diff --git a/utils-untyped.rkt b/utils-untyped.rkt
index 9855d92..dd2b23b 100644
--- a/utils-untyped.rkt
+++ b/utils-untyped.rkt
@@ -47,11 +47,7 @@
                                     [#:combine (-> any/c any/c any/c)
                                      #:combine/key (-> any/c any/c any/c any/c)]
                                     #:rest (listof hash?)
-                                    (and/c hash? immutable?))])
- ;; Contracts
- (contract-out [variable-mapping? contract?]
-               [string-variable-mapping? contract?]
-               [general-pair/c (-> contract? contract? contract?)]))
+                                    (and/c hash? immutable?))]))
 
 (module+ test
   (require rackunit))