diff --git a/api.php b/api.php
index 7e51a7a..eae0d93 100644
--- a/api.php
+++ b/api.php
@@ -27,19 +27,6 @@ function launcher_is_digit_password(string $password): bool
     return preg_match('/^\d{4}$/', $password) === 1;
 }
 
-function launcher_admin_assertion(array $config): string
-{
-    $body = base64_encode(json_encode([
-        'aud' => 'car-monitor',
-        'admin' => true,
-        'iat' => time(),
-        'exp' => time() + 120,
-    ], JSON_UNESCAPED_SLASHES));
-    $sig = hash_hmac('sha256', $body, (string)($config['auth']['secret'] ?? ''));
-
-    return $body . '.' . $sig;
-}
-
 if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     $data = custom_read_request_data();
     $action = $data['action'] ?? 'login';
@@ -130,7 +117,6 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
         custom_json([
             'admin' => $isAdmin,
             'authenticated' => $isAdmin,
-            'assertion' => $isAdmin ? launcher_admin_assertion($config) : '',
         ]);
     }