[remove] useless Git submodule

Author: TechQuery

.github/workflows/main.yml

@@ -16,9 +16,6 @@ jobs:
       - uses: actions/checkout@v4
         if: ${{ env.VERCEL_TOKEN && env.VERCEL_ORG_ID && env.VERCEL_PROJECT_ID }}
 
-      - name: Clone latest submodules
-        run: git submodule update --init --recursive --remote
-
       - name: Deploy to Vercel
         id: vercel-deployment
         uses: amondnet/vercel-action@v25