fix doc gen process (#935)

Author: Brian969

.github/workflows/release.yml

@@ -396,10 +396,6 @@ jobs:
             ./reference-artifacts/SAMPLE_CONFIGS/sample_snippets.md
 
       - name: Copy file output 4e
-        run: |
-          cp reference-artifacts/Third-Party/firewall-example-A-A-singletunnel.txt ${{ steps.setup.outputs.dir }}/4e-${{ steps.setup.outputs.prefix }}-firewall-example-A-A-singletunnel.txt
-
-      - name: Copy file output 4e1
         run: |
           cp reference-artifacts/Third-Party/firewall-example-A-A-multitunnel.txt ${{ steps.setup.outputs.dir }}/4e-${{ steps.setup.outputs.prefix }}-firewall-example-A-A-multitunnel.txt