chore: Remove clown issue closer

No body ever read anyway, what's the point, it only cause spam.

.github/workflows/issue_closer.yml

@@ -1,26 +0,0 @@
-name: Issue moderator
-
-on:
-  issues:
-    types: [ opened, edited, reopened ]
-  issue_comment:
-    types: [ created ]
-
-jobs:
-  autoclose:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Moderate issues
-      uses: keiyoushi/issue-moderator-action@a017be83547db6e107431ce7575f53c1dfa3296a # v2
-      with:
-        repo-token: ${{ secrets.ISSUE_MODERATION_PAT }}
-        auto-close-rules: |
-          [
-            {
-              "type": "body",
-              "regex": "- \\[[xX]\\] I have admitted that I am a clown by having checked this box, as I have not read these acknowledgements\\.",
-              "labels": [":clown_face:"],
-              "message": "You have not carefully read the acknowledgements."
-            }
-          ]
-        auto-close-ignore-label: do-not-autoclose