title: How to remove a field from Ecto model
body: <p>I would like to remove a field from an existing Ecto model:</p>
  
  <pre><code>field :age, :integer
  </code></pre>
  
  <p>After reading the docs I'm not sure what's the best/simple way of doing it (remove(column))?...Can you exemplify?
  I've tried:</p>
  
  <pre><code>def change do
      create table(:users) do
        remove :age
      end
  end
  </code></pre>
  
  <p>and it's not working.</p>