Homebrew is a popular MacOS package manager and Cask extends Homebrew by providing the ability to install Mac programs programmatically via Homebrew.
Bonus point, you can use Homebrew + Cask + Brewfile to describe your MacOS configuration and easily manage your dependencies.
Long story short, Daedalus is now a cask. If you already use Cask, you can install it with:
$ brew cask install daedalus
To remove the app:
$ brew cask uninstall daedalus
To completely remove the app, including any setting and any blockchain downloaded data:
$ brew cask zap daedalus
Enjoy!