removal of content you acknowledge that apple is not responsible or liable in any way for any content provided by others and has no duty to pre screen such content. however apple reserves the right at all times to determine whether content is appropriate and in compliance with this agreement and may pre screen move refuse modify and or remove content at any time without prior notice and in its sole discretion if such content is found to be in violation of this agreement or is otherwise objectionable.
they can delete any of your data files music messages etc. at any time and without notice.
The service can delete specific content without prior notice and without a reason
removed quote from tldr
They can delete any of your data (files, music, messages, etc.) at any time and without notice
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All the data that you have on iCloud can be removed or modified by Apple if they think it is inappropriate or “objectionable” to them. It can be done automatically with pre-screen, and without prior notice to you. Section: “Removal of Content” (content means all your data on iCloud, from files to software and messages)