ci: drop super-linter's shellcheck

It's been a while since we introduced Differential ShellCheck and it
proved to be quite useful (and in some ways even better than the shellcheck
run by super-linter). So, to have only one linter scream at us for not
knowing how to write bash properly, let's drop the super-linter's one in
favor of Differential ShellCheck.

Follow-up for https://github.com/systemd/systemd/pull/24328#pullrequestreview-1074127504

diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index e136d97c92539f6e1ef04f74cae6cc76d033065e..bf1ba59b4c70d8f6cccaf088faedf5f9d461bd62 100644 (file)
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -32,13 +32,5 @@ jobs:
         uses: github/super-linter/slim@45fc0d88288beee4701c62761281edfee85655d7
         env:
           DEFAULT_BRANCH: main
-          MULTI_STATUS: false
-          # Excludes:
-          #   - man/.* - all snippets in man pages (false positives due to
-          #              missing shebangs)
-          #   - .*\.(in|SKELETON) - all template/skeleton files
-          #                         except kernel-install
-          FILTER_REGEX_EXCLUDE: .*/(man/.*|([^k]|k(k|ek)*([^ek]|e[^kr]))*(k(k|ek)*e?)?\.(in|SKELETON))$
           VALIDATE_ALL_CODEBASE: false
-          VALIDATE_BASH: true
           VALIDATE_GITHUB_ACTIONS: true