title: Disable wordpress 4.3 send email when password has been changed
body: <p>Wordpress developers say: You can disable these e-mails via the send_pass_change_email and send_email_change_email filters by setting them to false.</p>
  
  <p>I have added these lines into my plugin but it doesn't help:</p>
  
  <pre><code>function no_email_pass_change(){ return false; }
  add_filter( 'send_pass_change_email' , 'no_email_password_change');
  
  function no_email_email_change(){ return false; }
  add_filter( 'send_email_change_email' , 'no_email_email_change');
  
  function no_email_password_change(){ return false; }
  add_filter( 'wp_password_change_notification' , 'no_email_password_change');
  </code></pre>
  
  <p>Also I tried these:</p>
  
  <pre><code>add_filter( 'send_pass_change_email', '__return_false');
  add_filter( 'send_email_change_email', '__return_false');
  </code></pre>
  
  <p>But nothing helps. It is applicable only to WP 4.3.  What am I doing wrong?</p>