Remove broken curl_close() call

README.md

@@ -1,11 +1,10 @@
 # VMChecker Next
 
-VMChecker Next is a block-type plugin. It is a solution developed for programming assignments,
+VMChecker Next is a block type plugin. It is a solution developed for programming assignments,
 allowing teachers to create automatic checkers.
 
-User documentation is available at: https://github.com/open-education-hub/vmchecker-next/wiki.
-
-Issues can be opened at: https://github.com/open-education-hub/vmchecker-next/issues.
+User documentation available at: https://github.com/systems-cs-pub-ro/vmchecker-next/wiki.
+Issues can be opened at: https://github.com/systems-cs-pub-ro/vmchecker-next/issues.
 
 # Want to Help?
 See [CONTRIBUTING.md](https://github.com/open-education-hub/vmchecker-next/blob/master/CONTRIBUTING.md) for details.

classes/listener/observer.php

@@ -59,14 +59,12 @@ private static function stop_previous_attempt($assignid) {
 
         $backendurl = get_config('block_vmchecker', 'backend');
         $api = new \block_vmchecker\backend\api($backendurl);
-        $rawdata = $api->cancel($previousattempt->uuid );
+        $rawdata = $api->cancel($previousattempt->uuid);
 
         if ($rawdata === false) {
             return false;
         }
 
-        curl_close($ch);
-
         $DB->delete_records('block_vmchecker_submissions', array('id' => $previousattempt->id));
         return true;
     }