after update jsapiparameters, uncomment some lines

mobile/plugins/payment/wxpay.php

@@ -202,7 +202,7 @@ class wxpay
         $prepay_id = $map['prepay_id'];
         // var_dump($prepay_id);
         // echo "payinfo: " . $payinfo;
-        var_dump($payinfo);
+        // var_dump($payinfo);
         // var_dump($package);
         // echo "1234";