Revert "Fix URL is blocked message when not behind a proxy/load balancer"

This reverts commit 51db933862.

classes/local/outagelib.php

@@ -56,7 +56,7 @@ class outagelib {
         global $CFG;
         require_once($CFG->libdir . '/filelib.php');
 
-        $curl = new curl(['ignoresecurity' => true]);
+        $curl = new curl();
         $contents = $curl->get($file);
         $info = $curl->get_info();
         if (!empty($info['content_type'])) {