Delete deprecated nCipher article, fix Node.js output placeholders

- hsm-protected-keys-ncipher.md: DELETED — deprecated since June 2021,
  739 lines of obsolete content (Windows 7, .NET 4.5, PowerShell 1.1.0
  prereqs). Fully superseded by hsm-protected-keys-byok.md
- .openpublishing.redirection.key-vault.json: Added redirect from
  nCipher article to BYOK article
- toc.yml: Removed nCipher entry
- hsm-protected-keys.md: Simplified nCipher row to point directly
  to BYOK method (removed deprecated method reference)
- quick-create-node.md: Replaced YOUR-KEY-VAULT-ENDPOINT,
  YOUR-KEY-NAME, YOUR-KEY-VERSION, YOUR-KEY-TYPE placeholders with
  angle-bracket style in both JS and TS output examples; fixed
  misleading YOUR-KEY-VAULT-NAME (was actually key name, not vault)

Co-authored-by: Copilot <[email protected]>

Author: msmbaldwin

.openpublishing.redirection.key-vault.json

@@ -599,6 +599,11 @@
       "source_path_from_root": "/articles/key-vault/secrets/about-managed-storage-account-keys.md",
       "redirect_url": "/azure/storage/common/authorize-data-access",
       "redirect_document_id": false
+    },
+    {
+      "source_path_from_root": "/articles/key-vault/keys/hsm-protected-keys-ncipher.md",
+      "redirect_url": "/azure/key-vault/keys/hsm-protected-keys-byok",
+      "redirect_document_id": false
     }
   ]
 }