fix(red): remove ts pages from menu (#5142)

Author: ldecarvalho-doc

menu/navigation.json

@@ -2351,20 +2351,6 @@
                 "slug": "reference-content"
               },
               {
-                "items": [
-                  {
-                    "label": "Dealing with Database Instance unavailability",
-                    "slug": "database-instance-unavailable"
-                  },
-                  {
-                    "label": "Dealing with Database Instance connectivity issues",
-                    "slug": "database-instance-connectivity-issues"
-                  },
-                  {
-                    "label": "Dealing with Database Instance performance issues",
-                    "slug": "database-instance-performance-issues"
-                  }
-                ],
                 "label": "Troubleshooting",
                 "slug": "troubleshooting"
               }