Retire all legacy KV-managed storage account articles

The KV-managed storage account keys feature is deprecated and goes
against current Microsoft security guidance. The underlying SDK sample
was retired from azure-sdk-for-net (PR #57907), and CLI support was
removed in Azure CLI 2.54.

Deleted articles:
- about-managed-storage-account-keys.md
- overview-storage-keys.md
- overview-storage-keys-powershell.md
- storage-keys-sas-tokens-code.md

All redirect to /azure/storage/common/authorize-data-access.
Updated cross-references in about-keys-secrets-certificates.md
and whats-new.md to note deprecation.

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

Author: msmbaldwin

.openpublishing.redirection.key-vault.json

@@ -65,7 +65,7 @@ The Azure Key Vault resource provider supports two resource types: vaults and ma
 - **Cryptographic keys**: Supports multiple key types and algorithms, and enables the use of software-protected and HSM-protected keys. For more information, see [About keys](../keys/about-keys.md).
 - **Secrets**: Provides secure storage of secrets, such as passwords and database connection strings. For more information, see [About secrets](../secrets/about-secrets.md).
 - **Certificates**: Supports certificates, which are built on top of keys and secrets and add an automated renewal feature. When you create a certificate, the process also creates an addressable key and secret with the same name. For more information, see [About certificates](../certificates/about-certificates.md).
-- **Azure Storage account keys**: Can manage keys of an Azure Storage account for you. Internally, Key Vault can list (sync) keys with an Azure Storage Account, and regenerate (rotate) the keys periodically. For more information, see [Manage storage account keys with Key Vault](../secrets/overview-storage-keys.md).
+- **Azure Storage account keys (legacy, deprecated)**: Key Vault previously could manage keys of an Azure Storage account. This feature is deprecated; use [Microsoft Entra ID authorization for Azure Storage](/azure/storage/common/authorize-data-access) instead.
 
 For more general information about Key Vault, see [About Azure Key Vault](overview.md). For more information about Managed HSM pools, see What is [Azure Key Vault Managed HSM?](../managed-hsm/overview.md)
 

articles/key-vault/general/about-keys-secrets-certificates.md

@@ -205,7 +205,7 @@ New features and integrations released this year:
 
 New features released this year:
 
-- Managed storage account keys. Storage Account Keys feature added easier integration with Azure Storage. For more information, see [Managed Storage Account Keys overview](../secrets/overview-storage-keys.md).
+- Managed storage account keys (deprecated). Storage Account Keys feature added easier integration with Azure Storage. This feature is now deprecated; use [Microsoft Entra ID authorization for Azure Storage](/azure/storage/common/authorize-data-access) instead.
 - Soft delete. Soft-delete feature improves data protection of your key vaults and key vault objects. For more information, see [Soft-delete overview](./soft-delete-overview.md).
 
 ## 2015

articles/key-vault/general/whats-new.md

@@ -132,18 +132,6 @@ conceptualContent:
           itemType: reference
           text:  Node.js Client library
 
-    - title: Key Vault with Storage
-      links:
-        - url: ./secrets/overview-storage-keys.md
-          itemType: overview
-          text: Manage storage keys - CLI
-        - url: ./secrets/overview-storage-keys-powershell.md
-          itemType: overview
-          text: Manage storage keys - PowerShell
-        - url: ./secrets/storage-keys-sas-tokens-code.md
-          itemType: overview
-          text: Fetch SAS tokens in code
-
     - title: Key Vault with Virtual Machines
       links:
         - url: /azure/virtual-machines/extensions/key-vault-windows

articles/key-vault/index.yml

@@ -67,18 +67,6 @@ landingContent:
           - text: Rotate secrets for dual-credential resources
             url: tutorial-rotation-dual.md
 
-  # Card
-  - title: Manage storage keys
-    linkLists:
-      - linkListType: how-to-guide
-        links:
-          - text: Manage storage account keys with CLI
-            url: overview-storage-keys.md
-          - text: Manage storage account keys with PowerShell
-            url: overview-storage-keys-powershell.md
-          - text: Fetch shared access signature tokens in code
-            url: storage-keys-sas-tokens-code.md
-
   # Card
   - title: JavaScript developer guide
     linkLists: