ci remove formatting request workflow

This approach is too risky and insecure in its current implementation.

.github/workflows/handle_format_request.yml

@@ -1,48 +0,0 @@
-name: Reformat PR code
-on:
-  issue_comment:
-    types: [created]
-
-jobs:
-  update-formatting:
-    continue-on-error: true
-    if: github.event.issue.user.login == 'embeddedt'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: khan/pull-request-comment-trigger@bb03972cc9f423111f3b5a23fcc9fd32741acabb
-        if: success()
-        id: check-comment
-        with:
-          trigger: '@lvgl-bot format'
-          prefix_only: true
-          reaction: rocket
-        env:
-          GITHUB_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
-      - run: exit 1
-        if: steps.check-comment.outputs.triggered == 'false'
-      - name: Install astyle
-        if: success()
-        run: |
-          sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu `lsb_release -sc` main universe restricted multiverse"
-          sudo apt-get update -y -qq
-          sudo apt-get install astyle
-      - uses: actions/checkout@v2
-        if: success()
-        with:
-          token: ${{ secrets.LVGL_BOT_TOKEN }}
-      - name: Checkout PR
-        uses: dawidd6/action-checkout-pr@v1
-        if: success()
-        with:
-          pr: ${{github.event.issue.number}}
-          token: ${{ secrets.LVGL_BOT_TOKEN }}
-      - name: Format code
-        run: python code-format.py
-        working-directory: scripts
-      - name: Commit changes
-        run: |
-          git config --global user.name 'lvgl-bot'
-          git config --global user.email 'lvgl-bot@users.noreply.github.com'
-          git config push.default upstream
-          git commit -am "style automatic formatting"
-          git push