How to reduce the capacity on power plat

[mmchx]

Dear All Experts,

I found the notification on the power platform admin center which is over capacity.

I read this: https://docs.microsoft.com/en-us/power-platform/admin/free-storage-space which I'm not found the Bulk Deletion Wizard to reduce the capacity which it looks like it will appear on Dynamic 365 but my organization doesn't use the Dynamic 365. So, on the power platform Do I need to purchase the license to extend the capacity only? or I need to delete the unused environment?