“Unlinked kegs in your Cellar”. How do I remove them?

Question

After installing and uninstalling some programs through brew and brew cask, now I get brew doctor saying \"unlinked kegs in your Cellar\".

Answer 1

rm /usr/local/Library/Taps/josegonzalez

-or if you are frightened-

mv /usr/local/Library/Taps/josegonzalez /usr/local/Library

Alike for other conflicting, but unlinked kegs/taps.