maintainers/update-{st,h}ackage.sh: drop support for --do-commit

maintainers/scripts/haskell/update-stackage.sh

@@ -26,6 +26,11 @@
 
 set -eu -o pipefail
 
+if [[ "${1:-}" == "--do-commit" ]]; then
+  echo "$0: --do-commit is no longer supported. Use update-package-set.sh instead."
+  exit 100
+fi
+
 # Stackage solver to use, LTS or Nightly
 # (should be capitalized like the display name)
 SOLVER=LTS
@@ -100,15 +105,4 @@ sed -r \
 # ShellCheck: latest version of command-line dev tool.
 # Agda: The Agda community is fast-moving; we strive to always include the newest versions of Agda and the Agda packages in nixpkgs.
 
-version_diff="$old_version -> $version"
-
-if [[ "${1:-}" == "--do-commit" ]]; then
-git add $stackage_config
-git commit -F - << EOF
-haskellPackages: stackage $version_diff
-
-(generated by maintainers/scripts/haskell/update-stackage.sh)
-EOF
-else
-echo "$version_diff"
-fi
+echo "$old_version -> $version"