diff --git a/admin-dev/filemanager/ajax_calls.php b/admin-dev/filemanager/ajax_calls.php
index 47c5918247f1..3ae2ddee75f8 100644
--- a/admin-dev/filemanager/ajax_calls.php
+++ b/admin-dev/filemanager/ajax_calls.php
@@ -24,17 +24,6 @@
             if (isset($_GET['descending'])) {
                 $_SESSION['descending'] = $_GET['descending'] === 'true';
             }
-            break;
-        case 'image_size':
-            if (realpath(dirname(_PS_ROOT_DIR_.$_POST['path'])) != realpath(_PS_ROOT_DIR_.$upload_dir)) {
-                die();
-            }
-            $pos = strpos($_POST['path'], $upload_dir);
-            if ($pos !== false) {
-                $info = getimagesize(substr_replace($_POST['path'], $current_path, $pos, strlen($upload_dir)));
-                echo json_encode($info);
-            }
-
             break;
         case 'save_img':
             $info = pathinfo($_POST['name']);