title: how do I manually cleanup the last flyway migration that ran against a database
body: <p>I want to manually remove a flyway migration that has run successfully against the database.  It is the last migration that ran.</p>
  
  <p>Will this work:</p>
  
  <ol>
  <li><p>Manually revert the changes that were performed in the migration script (it added a column so will drop this column)</p></li>
  <li><p>Remove the entry for the migration from the schema_version table</p></li>
  </ol>
  
  <p>Is there anything else I need to do?</p>