Remove unnecessary dependency on random

haskell98.cabal

@@ -19,7 +19,6 @@ Cabal-Version: >= 1.6
 Library
     build-depends:	base        >= 3   && < 5,
                     directory   >= 1.1 && < 1.2,
-                    random      >= 1.0 && < 1.1,
                     old-time    >= 1.0 && < 1.1,
                     old-locale  >= 1.0 && < 1.1,
                     process     >= 1.0 && < 1.1,