I decided to try out Google Chrome and see if it was any different from Chromium, but now I can't figure out how to uninstall it. That's what I have installed. How to get rid of it is the question.
It's usually better to purge:
sudo apt-get purge google-chrome-stable
sudo apt-get autoremove
This will make sure you don't have unnecessary packages remaining, and will remove config files, saving a little space and making sure it won't interfere with other programs or future reinstallations.