remove workflow which isn't valid anymore

.github/workflows/broken_link_cron.yml

@@ -1,88 +0,0 @@
-name: Open a PR to remove broken links on a schedule
-
-on:
-  workflow_dispatch:
-  schedule:
-  - cron: '0 0 * * *'
-
-permissions:
-  issues: write
-  pull-requests: write
-
-jobs:
-  check-for-broken-links:
-    runs-on: ubuntu-latest
-    permissions:
-      pull-requests: write
-
-    steps:
-    - uses: actions/checkout@v3
-      with:
-        token: ${{ secrets.REMOVE_BROKEN_LINKS_GH_TOKEN }}
-
-    - uses: actions/setup-node@v3
-      with:
-        node-version: 13
-
-    - uses: ipfs/aegir/actions/cache-node-modules@master
-      with:
-        directories: |
-          README.md
-        build: |
-          npm run build:readme
-        cache_name: readme
-
-    - name: Set up Ruby 3.1.2
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: 3.1.2
-
-    # Cache the files created by awesome_bot
-    - name: Cache awesome_bot files
-      uses: actions/cache@v3
-      id: awesome_bot_cache
-      with:
-        path: |
-          ab-results-README.md-filtered.json
-          ab-results-README.md-markdown-table.json
-          ab-results-README.md.json
-        key: ${{ runner.os }}-awesome_bot-${{ hashFiles('README.md') }}
-
-    - name: Install and run awesome_bot
-      if: steps.awesome_bot_cache.outputs.cache-hit != 'true'
-      run: |
-        gem install awesome_bot
-        awesome_bot --allow 429 --allow-redirect --allow-dupe --allow-ssl -w ipfs.io README.md || echo
-
-    - name: Remove broken links
-      id: remove-broken-links
-      run: |
-        node scripts/remove-broken-links.js
-        echo "Changed files:"
-        git ls-files -m
-        changed_data_files_count=$(git ls-files -m data | wc -l | tr -d ' ')
-        echo "changed_data_files_count='$changed_data_files_count'"
-        echo "changed_data_files_count=$changed_data_files_count" >> $GITHUB_OUTPUT
-
-    - uses: EndBug/add-and-commit@d4d066316a2a85974a05efb42be78f897793c6d9 # v9.1.0 - https://github.com/EndBug/add-and-commit/commit/d4d066316a2a85974a05efb42be78f897793c6d9
-      if: steps.remove-broken-links.outputs.changed_data_files_count != 0
-      with:
-        add: 'data'
-        new_branch: remove-broken-links
-        message: 'chore: Remove broken links'
-        push: 'origin remove-broken-links --set-upstream --force'
-        author_name: 'ipfs-gui-bot'
-        author_email: '108953096+ipfs-gui-bot@users.noreply.github.com'
-
-    - name: pull-request
-      if: steps.remove-broken-links.outputs.changed_data_files_count != 0
-      uses: repo-sync/pull-request@65785d95a5a466e46a9d0708933a3bd51bbf9dde
-      with:
-        source_branch: "remove-broken-links"
-        destination_branch: "master"
-        pr_title: "chore: Remove broken links"
-        pr_body: "Automated PR created by .github/workflows/broken_link_cron.yml"
-        pr_label: "kind/maintenance"
-        pr_draft: false
-        pr_allow_empty: false
-        github_token: ${{ secrets.GITHUB_TOKEN }}