source/Application/Controller/Admin/UserList.php
public function deleteEntry()
    {
        if ($this->_allowAdminEdit($this->getEditObjectId())) {
            $this->_oList = null;

            return parent::deleteEntry();
        }
    }
public function deleteEntry()
    {
        if ($this->_allowAdminEdit($this->getEditObjectId())) {
            $this->_oList = null;

            return parent::deleteEntry();
        }
    }
public function deleteEntry ( ) { if ( $ this -> _allowAdminEdit ( $ this -> getEditObjectId ( ) ) ) { $ this -> _oList = null ; return parent :: deleteEntry ( ) ; } }
Admin user is allowed to be deleted only by mall admin

@return null
Admin user is allowed to be deleted only by mall admin