fix: 修复Hugo版本兼容性问题

themes/Ying/layouts/page/comment.html

@@ -8,7 +8,6 @@
       - 名称：{{ .Site.Params.message_info.name | default .Site.Params.artalk.site }}<br>
       - 简介：{{ .Site.Params.message_info.description | default .Site.Params.author.description }}<br>
       - 链接：{{ .Site.Params.message_info.url | default .Site.BaseURL }}<br>
-      - 订阅：{{ "rss.xml" | absURL }}<br>
       - 图标：{{ .Site.Params.message_info.icon | default .Site.Params.author.avatar }}
     </div>
   </div>