title: How to delete migration files in Rails 3
body: <p>I would like to remove/delete a migration file. How would I go about doing that? I know there are similar questions on here but as an update, is there a better way than doing script/destroy?</p>
  
  <p>Also, should I do a <code>db:reset</code> or <code>db:drop</code> if I remove/delete a migration?</p>