Remove "Creative Cloud Files" from Finder sidebar?
This is how you show / hide certain icons of the Finder Sidebar:

Try a right-click on the folder, then 'Remove from Sidebar'.

1) Go to 'Finder', then open 'Preferences' from the menu bar


2) Navigate to the 'Sidebar' tab


3) Uncheck the appropriate icon(s) as required. Then close.
I believe that apps like CCleaner can clean up these "ghost" directories too. However, based on your question, these steps should do the job. Let me know how you get on.