Remove one-time v17.6.6 timer fix workflow

.github/workflows/fix-v1766-duplicate.yml

@@ -1,27 +0,0 @@
-name: Fix v17.6.6 duplicate timer
-
-on:
-  push:
-    branches:
-      - feature/v17.6.6-offer-templates
-    paths:
-      - .github/workflows/fix-v1766-duplicate.yml
-
-permissions:
-  contents: write
-
-jobs:
-  fix:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Fix duplicate declaration
-        run: |
-          sed -i 's/  let autoTimer=0,maintainTimer=0;  let autoTimer=0,maintainTimer=0;/  let autoTimer=0,maintainTimer=0;/' public/core/ux-fixes-v1764.js
-      - name: Commit
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git add public/core/ux-fixes-v1764.js
-          git commit -m "Fix v17.6.6 UX timer declaration" || exit 0
-          git push