delete the comment on the success

.github/workflows/link_checker_workflow.yaml

@@ -101,6 +101,16 @@ jobs:
           
           # Clean the report (remove redirects) AND append it to the file
           sed -E '/(Redirect|Redirects per input)/d' lychee-report.md >> full-report.md
+      
+      - name: Delete comment on success
+        if: env.HAS_CHANGES == 'true' && steps.lychee-check.outcome == 'success' && steps.find-comment.outputs.comment-id != ''
+        run: |
+          gh api \
+            --method DELETE \
+            -H "Accept: application/vnd.github+json" \
+            /repos/${{ github.repository }}/issues/comments/${{ steps.find-comment.outputs.comment-id }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Create PR Comment
         if: env.HAS_CHANGES == 'true' && steps.lychee-check.outcome == 'failure'