title: How do you remove the documentation installed by gem install?
body: <p>I know it's possible to install a gem without the documentation, but unfortunately, I didn't for the first three months I used ruby. In that time, I managed to install a significant amount of gems, but not once since I started using ruby have I used the documentation on my computer. I always look to docs on the internet.</p>
  
  <p>What is the best way to safely remove the documentation from my computer? Also, is there a way to configure ruby to not install documentation by default?</p>