Removed useless check if self::$trustProxies is set

In Request::getClientIps() on line 772 there is a check if self::$trustedProxies is not set. If this condition evaluates to true the method will return.
Because of this the second identical check on line 783 will never evaluate to true, as when reaching this position self::$trustedProxies must be set.

src/Symfony/Component/HttpFoundation/Request.php

@@ -757,12 +757,11 @@ public function getClientIps()
         $clientIps = array_map('trim', explode(',', $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_IP])));
         $clientIps[] = $ip; // Complete the IP chain with the IP the request actually came from
 
-        $trustedProxies = !self::$trustedProxies ? array($ip) : self::$trustedProxies;
         $ip = $clientIps[0]; // Fallback to this when the client IP falls into the range of trusted proxies
 
         // Eliminate all IPs from the forwarded IP chain which are trusted proxies
         foreach ($clientIps as $key => $clientIp) {
-            if (IpUtils::checkIp($clientIp, $trustedProxies)) {
+            if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
                 unset($clientIps[$key]);
             }
         }