chore: remove temporary PR validation workflow

.github/workflows/temp-pr14-remaining-review.yml

@@ -1,58 +0,0 @@
-name: Temporary PR14 remaining review validation
-
-on:
-  pull_request_target:
-    types: [synchronize, reopened]
-    branches: [main]
-
-permissions:
-  contents: write
-
-jobs:
-  apply-and-test:
-    if: >-
-      github.event.pull_request.number == 14 &&
-      github.event.pull_request.head.repo.full_name == github.repository &&
-      github.event.pull_request.head.ref == 'fix/remaining-review-hardening'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: fix/remaining-review-hardening
-      - id: patch
-        name: Detect pending transformation
-        shell: bash
-        run: |
-          if [[ -f tools/apply_remaining_review_fixes.py && -f tools/review_fix_payloads.py ]]; then
-            echo "run=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "run=false" >> "$GITHUB_OUTPUT"
-          fi
-      - if: steps.patch.outputs.run == 'true'
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.12'
-      - if: steps.patch.outputs.run == 'true'
-        name: Install dependencies
-        run: python -m pip install -r requirements.txt
-      - if: steps.patch.outputs.run == 'true'
-        name: Apply remaining review fixes
-        run: python tools/apply_remaining_review_fixes.py
-      - if: steps.patch.outputs.run == 'true'
-        name: Compile
-        run: python -m compileall -q grok_register_ttk.py registration_core.py cpa_export.py cpa_xai tests
-      - if: steps.patch.outputs.run == 'true'
-        name: Run tests
-        run: python -m unittest discover -s tests -v
-      - if: steps.patch.outputs.run == 'true'
-        name: Check diff
-        run: git diff --check
-      - if: steps.patch.outputs.run == 'true'
-        name: Commit tested changes and remove branch tooling
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git rm -f tools/apply_remaining_review_fixes.py tools/review_fix_payloads.py .github/workflows/temp-remaining-review-fixes.yml
-          git add -A
-          git commit -m "fix: resolve remaining review findings"
-          git push origin HEAD:fix/remaining-review-hardening