Remove Taps gem

* Preferred method is via `pgbackups` and `pg_restore`.
* We have a `db-load-production` script in thoughtbot/dotfiles that
  wraps up the preferred method.

ruby

@@ -10,9 +10,6 @@ echo "Installing Rails to write and run web applications ..."
 echo "Installing the Heroku gem to interact with the http://heroku.com API ..."
   gem install heroku --no-rdoc --no-ri
 
-echo "Installing the Taps gem to push and pull SQL databases between development, staging, and production environments ..."
-  gem install taps --no-rdoc --no-ri
-
 echo "Installing the pg gem to talk to Postgres databases ..."
   gem install pg --no-rdoc --no-ri