Remove temporary phpcheck diagnostic

_webhook/phpcheck.php

@@ -1,12 +0,0 @@
-<?php
-// Temporary diagnostic - delete after checking
-header('Content-Type: application/json');
-echo json_encode([
-    'upload_max_filesize' => ini_get('upload_max_filesize'),
-    'post_max_size' => ini_get('post_max_size'),
-    'memory_limit' => ini_get('memory_limit'),
-    'max_execution_time' => ini_get('max_execution_time'),
-    'php_version' => phpversion(),
-    'server' => gethostname(),
-    'timestamp' => date('c')
-]);