If I try to run tests I get 

Gem::LoadError: You have already activated jruby-openssl 0.9.5, but your Gemfile requires jruby-openssl 0.8.5. Prepending `bundle exec` to your command may solve this.

I can do as indicated and prepend `bundle exec` to get around this.  

This is happening because I have a *newer* version of the gem in another project.

However I am no longer using the other application with the newer version of the gem, so I was wondering:

How can I actually remove the newer version so I don't have to bundle exec before my rails commands?