delete fqdn (#236)

diff --git a/versioned_sidebars/version-1.2-sidebars.json b/versioned_sidebars/version-1.2-sidebars.json
index c543983..74ea027 100644
--- a/versioned_sidebars/version-1.2-sidebars.json
+++ b/versioned_sidebars/version-1.2-sidebars.json
@@ -1047,8 +1047,7 @@
                     "items": [
                         "admin-manual/cluster-management/upgrade",
                         "admin-manual/cluster-management/elastic-expansion",
-                        "admin-manual/cluster-management/load-balancing",
-                        "admin-manual/cluster-management/fqdn"
+                        "admin-manual/cluster-management/load-balancing"
                     ]
                 },
                 {