Add missing backup site translations

dashboard/public/translation/zh_Hans.json

@@ -832,7 +832,6 @@
         "ticket": {
             "title": "工单",
             "subscriptionRequired": "支持工单仅在付费订阅中可用。",
-            "subscriptionRequiredDescription": "您或许能在我们的<a href=\"{{ supportViewLink }}\" target=\"_blank\">文档</a>中找到答案，或者在<a href=\"{{ forumLink }}\" target=\"_blank\">论坛</a>上提问。",
             "type": "类型",
             "typeApp": "应用错误",
             "typeBug": "Bug 反馈",
@@ -1117,7 +1116,6 @@
             "incomingServerInfo": "入站邮件（IMAP）",
             "catchall": {
                 "saveAction": "保存",
-                "subscriptionRequired": "这个功能仅付费订阅可用。 <a href=\"\" class=\"pull-right\" ng-click=\"openSubscriptionSetup()\">现在设置订阅</a>",
                 "description": "若收件地址不存在，邮件会被转发给下列邮箱。",
                 "title": "邮件转移"
             }
@@ -1160,7 +1158,6 @@
             "saveAction": "保存",
             "htmlFormat": "HTML 格式（可选）",
             "plainTextFormat": "纯文本格式",
-            "subscriptionRequired": "本功能仅在付费订阅中可用。 <a href=\"\" class=\"pull-right\" ng-click=\"openSubscriptionSetup()\">现在设置付费订阅</a>",
             "description": "下列文本会被附在所有从本域名发出的邮件的末尾。",
             "title": "签名"
         },