chore: remove temporary HF token check workflow and marker

.github/workflows/ci-hf-upload-check.yml

@@ -1,38 +0,0 @@
-name: HF Upload Check
-
-on:
-  push:
-    branches: [main]
-    paths: ['.github/ci-hf-check-marker']
-
-permissions: {}
-
-jobs:
-  check:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-    steps:
-      - name: Install hf CLI
-        run: pip install -q -U "huggingface_hub[hf_xet]"
-
-      - name: Test upload to deepsafe/feature-bundles
-        env:
-          HF_TOKEN: ${{ secrets.HF_TOKEN }}
-        run: |
-          echo "ci-token-check-$(date -u +%Y%m%dT%H%M%S)" > /tmp/check.txt
-          hf upload deepsafe/feature-bundles /tmp/check.txt .ci-checks/upload-check.txt --repo-type model
-          echo "UPLOAD_OK"
-
-      - name: Verify anonymous download
-        run: |
-          curl -fsSL "https://huggingface.co/deepsafe/feature-bundles/resolve/main/.ci-checks/upload-check.txt" -o /tmp/downloaded.txt
-          cat /tmp/downloaded.txt
-          echo "ANON_DOWNLOAD_OK"
-
-      - name: Cleanup
-        if: always()
-        env:
-          HF_TOKEN: ${{ secrets.HF_TOKEN }}
-        run: |
-          python3 -c "from huggingface_hub import HfApi; HfApi().delete_file('.ci-checks/upload-check.txt', repo_id='deepsafe/feature-bundles', repo_type='model'); print('CLEANUP_OK')" || true