General: Remove unused dynamic $features variable from the constructor of class-ftp.php.

This fixes a PHP 8.2 deprecation, by removing the dynamic `$features` property from the ftp class as it is not used anywhere.

Props kmurphyzuora, debarghyabanerjee, hellofromTonya, peter8nss.
Fixes #62159.



git-svn-id: https://develop.svn.wordpress.org/trunk@62059 602fd350-edb4-49c9-b593-d223f7449a82

Author: audrasjb

src/wp-admin/includes/class-ftp.php

@@ -158,7 +158,6 @@ function __construct($port_mode=FALSE, $verb=FALSE, $le=FALSE) {
 		$this->_features=array();
 	    $this->OS_local=FTP_OS_Unix;
 		$this->OS_remote=FTP_OS_Unix;
-		$this->features=array();
 		if(strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') $this->OS_local=FTP_OS_Windows;
 		elseif(strtoupper(substr(PHP_OS, 0, 3)) === 'MAC') $this->OS_local=FTP_OS_Mac;
 	}