Revert "haskell-hakyll: patch Cabal file from upstream"

This reverts commit fe366d43e8.

pkgs/development/haskell-modules/configuration-common.nix

@@ -146,16 +146,11 @@ self: super: {
     else super.halive;
 
   # Hakyll's tests are broken on Darwin (3 failures); and they require util-linux
-  hakyll = appendPatch
-    (if pkgs.stdenv.isDarwin
+  hakyll = if pkgs.stdenv.isDarwin
     then dontCheck (overrideCabal super.hakyll (drv: {
       testToolDepends = [];
     }))
-    else super.hakyll)
-    (pkgs.fetchpatch {
-      url = https://github.com/jaspervdj/hakyll/commit/25a4460b75b3c9f3ce339b3311b084d92994f5f1.patch;
-      sha256 = "sha256-F59WHt52LOKGsGoaD3LAIZFEMe9s9WHfGxQgSh9Q8uQ=";
-    });
+    else super.hakyll;
 
   double-conversion = if !pkgs.stdenv.isDarwin
     then super.double-conversion

pkgs/development/haskell-modules/configuration-hackage2nix.yaml

@@ -5236,7 +5236,6 @@ broken-packages:
   - hakismet
   - hakka
   - hako
-  - hakyll
   - hakyll-agda
   - hakyll-blaze-templates
   - hakyll-contrib