remove Avada mce button

remove_avada_button.php

<?php

add_filter('mce_buttons','prefix_tinymce_buttons', 12);
function prefix_tinymce_buttons($buttons) {
    $user = wp_get_current_user();
    
    if ( $user->roles[0] == 'administrator' ) {
        return $buttons;
    }
      //Remove the text color selector
      $remove = 'fusion_button';

      //Find the array key and then unset
      if ( ( $key = array_search($remove,$buttons) ) !== false )
        unset($buttons[$key]);

      return $buttons;
}