Drop cabal-experimental input, use regular cabal for all shells

The cabal-experimental input (stable-haskell/cabal cross-compile branch)
was used for withGHCTooling shells. The pinned version (Apr 2025) has
hackage-security bounds incompatible with GHC 9.10+/9.12+ (ghc-prim
>= 0.12), causing IFD plan resolution failures. The newer version
(Aug 2025) fixes that but regresses shared library handling, breaking
downstream CI.

Simplify by using the regular cabal input for all shell variants.

Author: angerman

dynamic.nix

@@ -1,6 +1,6 @@
 # define a development shell for dynamically linked applications (default)
 { self, pkgs, compiler, compiler-nix-name, toolsModule, withHLS ? true, withHlint ? true, withIOG ? true, withIOGFull ? false, withGHCTooling ? false }:
-let tool-version-map = (import ./tool-map.nix) (self // { inputs = self.inputs // {cabal = if withGHCTooling then self.inputs.cabal-experimental else self.inputs.cabal;}; });
+let tool-version-map = (import ./tool-map.nix) self;
     tool = tool-name: pkgs.pkgsBuildBuild.haskell-nix.tool compiler-nix-name tool-name [(tool-version-map compiler-nix-name tool-name) toolsModule];
     cabal-install = tool "cabal";
     haskell-tools =

flake.lock

@@ -7,8 +7,6 @@
     inputs.iohk-nix.url = "github:input-output-hk/iohk-nix";
     inputs.cabal.url = "github:stable-haskell/cabal";
     inputs.cabal.flake = false;
-    inputs.cabal-experimental.url = "github:stable-haskell/cabal?ref=stable-haskell/feature/cross-compile";
-    inputs.cabal-experimental.flake = false;
 
     outputs = { self, nixpkgs, flake-utils, haskellNix, iohk-nix, ... }:
     let overlays = {