Delete .github/workflows/append-changelog.yml

Delete unused action

.github/workflows/append-changelog.yml

@@ -1,58 +0,0 @@
-name: Append changelog for new release
-
-on:
-
-  workflow_dispatch:
-    inputs:
-      version:
-        description: 'Version'     
-        required: true
-
-jobs:
-
-  append-changelog:
-    runs-on: ubuntu-latest
-    steps:
-
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Write changelog
-        run: |
-          cp -fv CHANGELOG.md CHANGELOG.md.bak
-          head -n2 CHANGELOG.md.bak > CHANGELOG.md
-          cat >> CHANGELOG.md << EOF
-          ## ${{ github.event.inputs.version }}
-
-          ### New Features
-
-          * TODO
-
-          #### Document Editors
-
-          * TODO
-
-          #### Spreadsheet Editor
-
-          * TODO
-
-          #### Presentation Editors
-
-          * TODO
-
-          ### Fixes
-
-          * TODO
-
-          EOF
-          tail -n +3 CHANGELOG.md.bak >> CHANGELOG.md
-          rm -fv CHANGELOG.md.bak
-
-      - name: Commit & push changes
-        uses: EndBug/add-and-commit@v8
-        with:
-          author_name: github-actions[bot]
-          author_email: github-actions[bot]@users.noreply.github.com
-          message: Add template changelog for v${{ github.event.inputs.version }}
-          add: CHANGELOG.md
-          new_branch: feature/changelog-v${{ github.event.inputs.version }}