Links form websites whose Adsense account has been cancelled are bad neighbourhood or not?

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Hello everyone,

I need some feedback on the following situation:
there are a number of links pointing to some of my websites and I've
found out that the owner of the links had a Google Adsense account
that's been cancelled. I don't know the reasons, if they played dirty
or not. Can this situation be considered as bad neighbourhood for my
websites? Should I ask them to remove immediately the links pointing to
my sites. What's your opinion on this kind of situations? Has anyone
encountered this issue before? Any info would be of great help. Thanks.

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