Remove out-of-date quickstart, unblock SFI

Author: flang-msft

articles/redis/.openpublishing.redirection.redis.json

@@ -20,7 +20,12 @@
             "source_path_from_root": "/articles/redis/machine-learning.md",
             "redirect_url": "/azure/machine-learning/how-to-deploy-online-endpoints",
             "redirect_document_id": false
+        },
+        {
+            "source_path_from_root": "articles/redis/rust-get-started.md",
+            "redirect_url": "https://github.com/Azure-Samples/azure-redis-cache-rust-quickstart/",
+            "redirect_document_id": false
         }
-      ]
+    ]
 }