title: Jquery delete value from FormData object
body: <p>how I can delete value from FormData object with same name?
  I have HTML form with two input files.</p>
  
  <pre><code>&lt;input id="human" type="file" name="file[]" class="docfiles" /&gt;
  &lt;input id="animal" type="file" name="file[]" class="docfiles" /&gt;
  </code></pre>
  
  <p>For example I want to delete file 1 - with id "human". Any idea how to do this?</p>
  
  <p>Here my demo <a href="https://jsfiddle.net/cmtsk812/1/" rel="noreferrer">jsfiddle</a>.</p>