fixed bug with crashing when starting and ending test

Author: darginmathi

ui/window.py

@@ -713,8 +713,6 @@ def on_test_started(self):
             self.menu_bar.stop_button.setEnabled(True)
 
     def on_test_finished(self, exit_code):
-        self.output_dock.stop_log_polling()
-
         console = self.output_dock.get_console()
         if exit_code == 0:
             console.append("\n[INFO] Run finished successfully.")