Fix code to pass phpmd

Author: terremoth

demos/demo.php

@@ -6,19 +6,14 @@
 use Terremoth\Async\PhpFile;
 
 $process = new Process();
+
 echo date('c') . ' :: Sending process. You should not wait any longer to see next message: ' . PHP_EOL;
+
 try {
     $process->send(function () {
-
-        $var1 = 4;
-        $var2 = ((2 + 2) / $var1) + ((2 * 2) - 1);
-
         sleep(5);
-
-        if ($var1 == $var2) {
-            echo 2;
-            file_put_contents('demo.txt', 'Hello, World! At: ' . date('c'));
-        }
+        echo 123;
+        file_put_contents('demo.txt', 'Hello, World! At: ' . date('c'));
     });
 } catch (Exception $e) {
     echo $e->getMessage();