title: delete qwidget from layout QT
body: <p>I have a qwidget (we'll call it qwidget1) inside of a layout of an other qwidget (we'll call it qwidget2), I want to delete everything that is in the layout of qwidget2: I would like to clear the layout so there's nothing in it anymore .. 
  what I can do so far is remove completely the qwidget2 by doing:</p>
  
  <pre><code>void QCell::deleteMyChildren(){
     delete this;
  }
  </code></pre>
  
  <p>but it removes the qwidget2 itself.. that's not what I want.
  Please help me remove the items that are inside the layout.</p>