delete_raw plugin will automatically delete raw files that
have been uploaded. This is especially useful when doing processing, to ensure
that temporary files have been deleted after upload.
By default any raw file that was uploaded will be deleted, but you can limit this only to files uploaded to certain storages:
plugin :delete_raw, storages: [:store]
If you want to skip deletion for a certain upload, you can pass
to the uploader:
uploader.upload(file, delete: false)