Post-install: Do I need the "Library" & "Receipts" folder?

I just performed a fresh, full install of 8.5 and had the installer, via custom selection, put the majority of the sound content (Halion SE, Padshop, etc.) in a folder called “Cubase 8.5 Sound Content” on an external drive. I noticed that when it was finished, the installer had also taken the liberty to add a folder at the root of this external drive called “Library” with a sub-folder called “Receipts”.

Do I need this “Library/Receipts” folder? Can I delete it or at least move it off this drive? (Trying to tidy-up this samples-only drive!)

Thanks for any help!