Issue #3455552 by mstrelan, xjm, quietone: Remove commented-out code in...

Issue #3455552 by mstrelan, xjm, quietone: Remove commented-out code in ArgumentDefaultTest referring to php module

core/modules/views/tests/src/Functional/Plugin/ArgumentDefaultTest.php

@@ -136,11 +136,6 @@ public function testArgumentDefaultFixed(): void {
     $this->assertEquals($random_string, $view->args[0], 'Provided argument should be used.');
   }
 
-  /**
-   * @todo Test php default argument.
-   */
-  // function testArgumentDefaultPhp() {}
-
   /**
    * Tests node default argument.
    */