title: tinymce remove control- mceRemoveEditor
body: <p>I have just two tinymce control - textarea. When I open my page first time, it opens fine but on reopening only first textarea comes properly. Remaining text areas dont have tinymce functionality. I am suspecting there is some issue in removing these controls.</p>
  
  <p>I am removing controls using following line of code:
  tinymce.execCommand('mceRemoveEditor', true, 'my_original_textarea_id');</p>
  
  <p>My tinymce version is 4.3.</p>
  
  <p>Also,tinymce.editors.length gives me 7. is this the expected value?</p>