workflows/autopublish: remove

This has been disabled for a month now, and it doesn't seem like we
missed it too much. I think it's safe to remove this now.

Also, now that we no longer attempt to merge approved pull requests at
regular intervals, there is no need to dismiss approvals from PRs when
this workflow fails. Presumably this was needed to avoid the workflow
from repeatedly attempting to publish a PR that cannot be published, but
this no longer a concern.

.github/workflows/publish-commit-bottles.yml

@@ -331,7 +331,7 @@ jobs:
         working-directory: ${{steps.set-up-homebrew.outputs.repository-path}}
 
       - name: Post comment on failure
-        if: ${{!success()}}
+        if: failure()
         uses: Homebrew/actions/post-comment@master
         with:
           token: ${{secrets.GITHUB_TOKEN}}
@@ -340,14 +340,6 @@ jobs:
           bot_body: ":warning: Bottle publish [failed](${{env.RUN_URL}}). CC @carlocab"
           bot: github-actions[bot]
 
-      - name: Dismiss approvals on failure
-        if: failure()
-        uses: Homebrew/actions/dismiss-approvals@master
-        with:
-          token: ${{secrets.GITHUB_TOKEN}}
-          pr: ${{inputs.pull_request}}
-          message: "bottle publish failed"
-
       - name: Wait until pull request branch is in sync with local repository
         id: wait-until-in-sync
         working-directory: ${{steps.set-up-homebrew.outputs.repository-path}}