[skip ci] remove unused github workflow

.github/mergify.yml

@@ -1,10 +0,0 @@
-#pull_request_rules:
-#  - name: Automatically merge translations
-#    conditions:
-#      - "author = weblate"
-#      - "-conflict"
-#      - "current-day-of-week = Sat"
-#      - "created-at < 1 day ago"
-#    actions:
-#      merge:
-#        method: squash

.github/workflows/issue_moderator.yml

@@ -1,41 +0,0 @@
-name: Issue moderator
-
-on:
-  issues:
-    types: [opened, edited, reopened]
-  issue_comment:
-    types: [created]
-
-jobs:
-  moderate:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Moderate issues
-        uses: keiyoushi/issue-moderator-action@a017be83547db6e107431ce7575f53c1dfa3296a
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          duplicate-label: Duplicate
-
-          auto-close-rules: |
-            [
-              {
-                "type": "both",
-                "regex": "^(?!.*myanimelist.*).*(aniyomi|anime).*$",
-                "ignoreCase": true,
-                "message": "Mihon does not support anime, and has no plans to support anime. In addition Mihon is not affiliated with Aniyomi https://github.com/jmir1/aniyomi"
-              },
-              {
-                "type": "both",
-                "regex": ".*(?:fail(?:ed|ure|s)?|can\\s*(?:no|')?t|(?:not|un).*able|(?<!n[o']?t )blocked by|error) (?:to )?(?:get past|by ?pass|penetrate)?.*cloud ?fl?are.*",
-                "ignoreCase": true,
-                "labels": ["Cloudflare protected"],
-                "message": "Refer to the **Solving Cloudflare issues** section at https://mihon.app/docs/guides/troubleshooting/#cloudflare. If it doesn't work, migrate to other sources or wait until they lower their protection."
-              },
-              {
-                "type": "both",
-                "regex": "^.*(myanimelist|mal).*$",
-                "ignoreCase": true,
-                "message": "For issues with linking MyAnimeList, please follow these steps:\n1. Update Mihon to version 0.16.4 or newer\n2. Change your default User-Agent (`More → Settings → Advanced → Default user agent string`)\n3. Close and restart Mihon\n4. Attempt to link MyAnimeList again\n\nIf you had MyAnimeList linked before, try to unlink it first before trying these steps."
-              }
-            ]
-          auto-close-ignore-label: do-not-autoclose