title: Sequelize v5 - Raw Queries return undefined when using QueryTypes.DELETE
body: <p>I'm trying to delete a record in the database with the <strong>DELETE</strong> query type, Sequelize always returns the undefined value.</p>
  <pre class="lang-sql prettyprint-override"><code>let userId = 1;
  
  sequelize.query('DELETE FROM user where user_id = ?',
      {replacements: [userId],type: sequelize.QueryTypes.DELETE})
      .then(result =&gt; {
          console.log('result ', result);
      });
  
  // result undefined
  </code></pre>
  <p>Query type: <strong>SELECT</strong>, <strong>UPDATE</strong> still working properly</p>