Update code sample

Author: scottaddie

docs/azure/sdk/authentication/best-practices.md

@@ -90,16 +90,8 @@ The Azure Identity library for .NET allows you to authenticate via managed ident
         - Use `ManagedIdentityCredential` directly
     - **How it works:** The time interval between retries starts at 0.8 seconds, and a maximum of five retries are attempted, by default. This mode is optimized for resilience but introduces potentially unwanted delays in the development inner loop.
 
-        To change the default retry settings, use the <xref:Azure.Core.ClientOptions.Retry%2A> property. For example, retry a maximum of three times, with a starting interval of 0.5 seconds:
-
-        # [DefaultAzureCredential](#tab/dac)
-
-        :::code language="csharp" source="../snippets/authentication/best-practices/CCA/Program.cs" id="snippet_retries_dac" highlight="4-8":::
-
-        # [ManagedIdentityCredential](#tab/mic)
+        To change the default retry settings, use the <xref:Azure.Core.ClientOptions.Retry%2A> property on `DefaultAzureCredentialOptions` or `ManagedIdentityCredentialOptions`. For example, retry a maximum of three times, with a starting interval of 0.5 seconds:
 
         :::code language="csharp" source="../snippets/authentication/best-practices/CCA/Program.cs" id="snippet_retries_mic" highlight="5-9":::
 
-        ---
-
         For more information on customizing retry policies, see [Setting a custom retry policy](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/core/Azure.Core/samples/Configuration.md#setting-a-custom-retry-policy).

docs/azure/sdk/snippets/authentication/best-practices/CCA/Program.cs

@@ -36,7 +36,7 @@
 });
 #endregion snippet_credential_reuse_AspNetCore
 
-#region snippet_retries_mic
+#region snippet_retries
 ManagedIdentityCredentialOptions miCredentialOptions = new(
         ManagedIdentityId.FromUserAssignedClientId(clientId)
     )
@@ -51,20 +51,6 @@
 ManagedIdentityCredential miCredential = new(miCredentialOptions);
 #endregion
 
-#region snippet_retries_dac
-DefaultAzureCredentialOptions dacOptions = new()
-{
-    ManagedIdentityClientId = clientId,
-    Retry =
-    {
-        MaxRetries = 3,
-        Delay = TimeSpan.FromSeconds(0.5),
-    }
-};
-
-DefaultAzureCredential credential = new(dacOptions);
-#endregion
-
 builder.Services.AddEndpointsApiExplorer();
 
 var app = builder.Build();