Clean up debug outputs and keep createMutable fix

backend/config.php

@@ -10,19 +10,14 @@ if (file_exists(__DIR__ . '/vendor/autoload.php')) {
     
     // Check inside current dir, parent dir, grandparent dir, or user root dir
     $envPaths = [__DIR__, dirname(__DIR__), dirname(dirname(__DIR__)), dirname(dirname(dirname(__DIR__)))];
-    $loadedEnvPath = 'none';
     foreach ($envPaths as $path) {
         if (file_exists($path . '/.env')) {
-            $loadedEnvPath = $path . '/.env';
             // Use createMutable to override any existing stuck environment variables
             $dotenv = Dotenv\Dotenv::createMutable($path);
             $dotenv->safeLoad();
             break;
         }
     }
-    define('ENV_LOADED_PATH', $loadedEnvPath);
-} else {
-    define('ENV_LOADED_PATH', 'vendor/autoload.php missing');
 }
 
 // Database