Remove duplicate ctkPluginEvent STOPPED.

Libs/PluginFramework/ctkPlugin.cpp

@@ -154,10 +154,6 @@ void ctkPlugin::stop(const StopOptions& options)
     break;
   };
 
-  if (d->state != UNINSTALLED)
-  {
-    d->fwCtx->listeners.emitPluginChanged(ctkPluginEvent(ctkPluginEvent::STOPPED, d->q_ptr));
-  }
   if (savedException)
   {
     if (const ctkPluginException* pluginExc = dynamic_cast<const ctkPluginException*>(savedException))