Coding Standards: Removing unnecessary parentheses from `require_once…

…` in `wp-admin/options-privacy.php`.

In [47198], parentheses were removed from `include` and `require` statements, as they are language constructs, not function calls.  However, [50161] introduced a new `require_once` instance in `wp-admin/options-privacy.php`.  This change removes the unnecessary parentheses.

See #53627.

git-svn-id: https://develop.svn.wordpress.org/trunk@50631 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/options-privacy.php

@@ -14,7 +14,7 @@
 }
 
 if ( isset( $_GET['tab'] ) && 'policyguide' === $_GET['tab'] ) {
-	require_once( dirname( __FILE__ ) . '/privacy-policy-guide.php' );
+	require_once dirname( __FILE__ ) . '/privacy-policy-guide.php';
 	return;
 }