misc: drop unknown key generation workflow

branch will be removed in next release, all unknown keybox user should update to v4.0 or newer version

.github/workflows/generate.yml

@@ -1,35 +0,0 @@
-name: generate
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-  workflow_dispatch:
-
-jobs:
-  generate:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout Repository
-        uses: actions/checkout@v4
-        with:
-          ref: 'bot'
-
-      - name: Generate and encode
-        run: |
-          curl -Ls https://raw.githubusercontent.com/KOWX712/keyboxGenerator/main/keyboxGenerator_v2.0.py | python3
-          base64 -w 0 "keybox.xml" | xxd -p | tr -d '\n' > .device
-
-      - name: Commit changes
-        run: |
-          git config --global user.name "github-actions[bot]"
-          git config --global user.email "github-actions[bot]@users.noreply.github.com"
-          git add .device
-          LAST_COMMIT_MSG=$(git log -1 --pretty=%B)
-          if [[ "$LAST_COMMIT_MSG" == "Update .device" ]]; then
-            git commit --amend --no-edit
-            git push --force
-          else
-            git commit -m "Update .device"
-            git push
-          fi