Fatal error: Cannot redeclare ViewsEFFieldsetData::moveFormElement() due to duplicated method

Issue Summary:

The file src/ViewsEFFieldsetData.php in the views_ef_fieldset module declares the moveFormElement() method twice in the same class ViewsEFFieldsetData, resulting in the following fatal error:

Fatal error: Cannot redeclare Drupal\views_ef_fieldset\ViewsEFFieldsetData::moveFormElement() in /var/www/html/html/modules/contrib/views_ef_fieldset/src/ViewsEFFieldsetData.php on line 177

Proposed Resolution:

Remove the duplicate method definition for moveFormElement() in ViewsEFFieldsetData.php