How do I delete "Documents & Data" from iCloud? Apple currently has two types of storage in iCloud:


iCloud Drive, for Macs running Yosemite.
Documents &amp; Data, for Macs running Mavericks or earlier.


I have one Mac running Mavericks, and the other running Yosemite, and I have upgraded to iCloud Drive. Does that mean that my data in (2) above is moved to (1), or that it's copied?

My goal is to delete all data stored in both (1) and (2). I deleted all my data from (1). Does it mean that all data stored in (2) is also deleted? If not, how do I delete all my data from (2)?
From my understanding, once you migrate to iCloud Drive, your old 'Documents &amp; Data' storage is converted &amp; no longer exists in its old location.

Mavericks/iOS 7 can't see iCloud Drive &amp; Yosemite/iOS 8 can't see the old Documents &amp; Data, migrated or not.

Refs:  


http://support.apple.com/en-la/HT201104  
http://support.apple.com/en-la/HT201385  
http://www.cultofmac.com/296334/psa-shouldnt-upgrade-icloud-drive-ios-8-yet/  
http://www.howtogeek.com/203304/everything-you-need-to-know-about-using-icloud-drive-and-icloud-photo-library/