use compact with add_var_to_front

plugins/fipf_wp_plugin/utils/create_html.php

@@ -1,10 +1,5 @@
 <?php
 
-function template($file) {
-	$template_dir_path = plugin_dir_path(__DIR__).'html/templates/';
-	include($template_dir_path.$file);
-}
-
 # using ob_start() and ob_get_clean()
 # allows to have php expansion inside the html loaded
 # in opposition to the methode file_get_contents()