fix: remove onError and onClose from example

Author: hasanparasteh

example/stream.php

@@ -58,15 +58,9 @@
 
 // Without QueryBuilder
 $dbFactory->streamQuery("select id from Users where id > 1")
-    ->onError(function (Exception $result) {
-        echo "Error " . $result->getMessage() . PHP_EOL;
-    })
     ->onData(function ($result) {
         echo "New Row Data:" . json_encode($result) . PHP_EOL;
     })
-    ->onClosed(function () {
-        echo "Task Finished";
-    })
     ->run();
 
 $loop->addPeriodicTimer(1, function () {