darwin.CF: remove and replace with stubs

pkgs/top-level/darwin-packages.nix

@@ -68,6 +68,7 @@ makeScopeWithSplicing' {
   stubs = {
     inherit apple_sdk apple_sdk_10_12 apple_sdk_11_0 apple_sdk_12_3;
   } // lib.genAttrs [
+    "CF"
   ] (mkStub apple_sdk.version);
 in
 
@@ -199,27 +200,6 @@ impure-cmds // appleSourcePackages // stubs // {
     inherit (apple_sdk) darwin-stubs;
   };
 
-  # TODO: Remove the CF hook if a solution to the crashes is not found.
-  CF =
-    # CF used to refer to the open source version of CoreFoundation from the Swift
-    # project. As of macOS 14, the rpath-based approach allowing packages to choose
-    # which version to use no longer seems to work reliably. Sometimes they works,
-    # but sometimes they crash with the error (in the system crash logs):
-    # CF objects must have a non-zero isa.
-    # See https://developer.apple.com/forums/thread/739355 for more on that error.
-    #
-    # In this branch, we only have a single "CoreFoundation" to choose from.
-    # To be compatible with the existing convention, we define
-    # CoreFoundation with the setup hook, and CF as the same package but
-    # with the setup hook removed.
-    #
-    # This may seem unimportant, but without it packages (e.g., bacula) will
-    # fail with linker errors referring ___CFConstantStringClassReference.
-    # It's not clear to me why some packages need this extra setup.
-    lib.overrideDerivation apple_sdk.frameworks.CoreFoundation (drv: {
-      setupHook = null;
-    });
-
   xcodeProjectCheckHook = pkgs.makeSetupHook {
     name = "xcode-project-check-hook";
     propagatedBuildInputs = [ pkgs.pkgsBuildHost.openssl ];