triv: fix token example in direct transactions in PHP

Author: luboSB-47

code_samples/php/v2.0.0/create_payment_direct.php

@@ -25,9 +25,7 @@
         "location" => "Test 123",
         "country" => "SK",
     ]),
-    "token" => new Tatrapayplus\TatrapayplusApiClient\Model\Token([
-        "google_pay_token" => "ABC12345"
-    ]),
+    "token" => "ABC12345",
 ]);
 
 $response = $tatrapayplus_api->initiateDirectTransaction(