LP: Create new item root when creating a LP + remove unused code

public/main/inc/ajax/lp.ajax.php

@@ -130,14 +130,6 @@ switch ($action) {
             if (empty($orderList)) {
                 exit;
             }
-            /*$sections = explode('^', $new_order);
-            $sections = array_filter($sections);
-            // We have to update parent_item_id, previous_item_id, next_item_id, display_order in the database
-            $orderList = [];
-            foreach ($sections as $items) {
-                [$id, $parentId] = explode('|', $items);
-                $orderList[$id] = $parentId;
-            }*/
             $learningPath = new learnpath($lp, api_get_course_info(), api_get_user_id());
             $learningPath->sortItemByOrderList($orderList);
 

public/main/lp/lp_add.php

@@ -207,7 +207,7 @@ if ($form->validate()) {
         );*/
 
         $lp->setSubscribeUsers(isset($_REQUEST['subscribe_users']) ? 1 : 0);
-        $lp->setAccumulateScormTime(1 == (int) $_REQUEST['accumulate_scorm_time'] ? 1 : 0);
+        $lp->setAccumulateScormTime(1 === (int) $_REQUEST['accumulate_scorm_time'] ? 1 : 0);
         $lpRepo->update($lp);
 
         $url = api_get_self().'?action=add_item&type=step&lp_id='.$lpId.'&'.api_get_cidreq();

public/main/lp/lp_controller.php

@@ -287,20 +287,6 @@ switch ($action) {
         }
 
         Session::write('refresh', 1);
-        // Creates first root item.
-        $itemRoot = $lpItemRepo->getItemRoot($lpId);
-        if (null == $itemRoot) {
-            $lpItem = new CLpItem();
-            $lpItem
-                ->setTitle('root')
-                ->setPath('root')
-                ->setLp($lp)
-                ->setItemType('root')
-            ;
-            $em = Database::getManager();
-            $em->persist($lpItem);
-            $em->flush();
-        }
 
         if (isset($_POST['submit_button']) && !empty($post_title)) {
             Session::write('post_time', $_POST['post_time']);