Update large partition key article

Author: seesharprun

articles/cosmos-db/large-partition-keys.md

@@ -21,9 +21,7 @@ As a best practice, unless you need support for an [older Azure Cosmos DB SDK or
 
 ## Create a large partition key (Azure portal)
 
-To create a large partition key, when you create a new container using the Azure portal, check the **My partition key is larger than 101-bytes** option. Unselect the checkbox if you don’t need large partition keys or if you have applications running on SDKs version older than 1.18.
-
-:::image type="content" source="./media/large-partition-keys/large-partition-key-with-portal.png" alt-text="Create large partition keys using Azure portal":::
+Containers created using the Azure portal use a large partition key by default.
 
 ## Create a large partition key (PowerShell)