Remove pod identity content from TSG (#42754)

Author: scottaddie

sdk/identity/azure-identity/TROUBLESHOOTING.md

@@ -18,7 +18,6 @@ This troubleshooting guide covers failure investigation techniques, common error
 - [Troubleshoot ManagedIdentityCredential authentication issues](#troubleshoot-managedidentitycredential-authentication-issues)
   - [Azure Virtual Machine managed identity](#azure-virtual-machine-managed-identity)
   - [Azure App Service and Azure Functions managed identity](#azure-app-service-and-azure-functions-managed-identity)
-  - [Azure Kubernetes Service managed identity](#azure-kubernetes-service-managed-identity)
 - [Troubleshoot VisualStudioCodeCredential authentication issues](#troubleshoot-visualstudiocodecredential-authentication-issues)
 - [Troubleshoot AzureCliCredential authentication issues](#troubleshoot-azureclicredential-authentication-issues)
 - [Troubleshoot AzureDeveloperCliCredential authentication issues](#troubleshoot-azuredeveloperclicredential-authentication-issues)
@@ -132,7 +131,6 @@ The `ManagedIdentityCredential` is designed to work on a variety of Azure hosts
 |---|---|---|
 |Azure App Service and Azure Functions|[Configuration](https://learn.microsoft.com/azure/app-service/overview-managed-identity)|[Troubleshooting](#azure-app-service-and-azure-functions-managed-identity)|
 |Azure Arc|[Configuration](https://learn.microsoft.com/azure/azure-arc/servers/managed-identity-authentication)||
-|Azure Kubernetes Service|[Configuration](https://azure.github.io/aad-pod-identity/docs/)|[Troubleshooting](#azure-kubernetes-service-managed-identity)|
 |Azure Service Fabric|[Configuration](https://learn.microsoft.com/azure/service-fabric/concepts-managed-identity)||
 |Azure Virtual Machines and Scale Sets|[Configuration](https://learn.microsoft.com/entra/identity/managed-identities-azure-resources/qs-configure-portal-windows-vm)|[Troubleshooting](#azure-virtual-machine-managed-identity)|
 
@@ -174,15 +172,6 @@ curl 'http://169.254.169.254/metadata/identity/oauth2/token?resource=https://man
 
 > Note that the output of this command will contain a valid access token, and SHOULD NOT BE SHARED to avoid compromising account security.
 
-### Azure Kubernetes Service managed identity
-
-#### Pod identity for Kubernetes
-
-`CredentialUnavailableError`
-| Error Message |Description| Mitigation |
-|---|---|---|
-|No managed identity endpoint found|The application attempted to authenticate before an identity was assigned to its pod|Verify the pod is labeled correctly. This also occurs when a correctly labeled pod authenticates before the identity is ready. To prevent initialization races, configure NMI to set the Retry-After header in its responses (see [Pod Identity documentation](https://azure.github.io/aad-pod-identity/docs/configure/feature_flags/#set-retry-after-header-in-nmi-response)).
-
 ## Troubleshoot `VisualStudioCodeCredential` authentication issues
 
 > **Applies to:** Version 1.24.0b1 and later