Azure Blob Lifecycle Management can now automatically delete objects in Premium Blob Storage accounts. Policies can be defined to automatically delete objects that has been unmodified for a certain number of days and can be scoped to specific container or for the entire storage account.
This helps simplify and management of data footprint for workloads that needs high performance access to data for a limited time, such as diagnostics data and generated reports.
Learn more about Premium Blob Lifecycle Management.