There are fonts showing up in my ID CC 2014 font lists that are not installed on my Win7 system -- i.e., they are not in the usual Fonts folder.
Not one of them is anything I would ever use. How do I get rid of them? And the answer is not "ignore them": I want my font lists to contain the fonts I want them to contain, and no others.
Turn off Font sync in the Creative Cloud app and you will revert to your existing installed fonts.