iCloud: Remove files from iCloud Drive
If you don’t see iCloud Drive on iCloud.com, your account just has access to iCloud web-only features. To gain access to other iCloud features, set up iCloud on your iOS device or Mac.
Select the files you want to remove, then click the Trash button in the iCloud Drive toolbar.
You can also remove files using your iOS 8 device, Mac with OS X Yosemite, or Windows computer set up for iCloud Drive. On your iOS 8 device, use apps that support iCloud Drive, such as Pages, Numbers, Keynote, and GarageBand. On your Mac, use the Finder or apps that support iCloud Drive. On your Windows computer with iCloud for Windows 4.0 or later, use File Explorer (Windows 8) or Windows Explorer (Windows 7).