Remove unnecessary empty usages

Author: ostrolucky

Factory/PsrHttpFactory.php

@@ -178,7 +178,7 @@ public function createResponse(Response $symfonyResponse): ResponseInterface
 
         $headers = $symfonyResponse->headers->all();
         $cookies = $symfonyResponse->headers->getCookies();
-        if (!empty($cookies)) {
+        if ($cookies) {
             $headers['Set-Cookie'] = [];
 
             foreach ($cookies as $cookie) {

Tests/Fixtures/Uri.php

@@ -47,13 +47,13 @@ public function getScheme(): string
 
     public function getAuthority(): string
     {
-        if (empty($this->host)) {
+        if (!$this->host) {
             return '';
         }
 
         $authority = $this->host;
 
-        if (!empty($this->userInfo)) {
+        if ($this->userInfo) {
             $authority = $this->userInfo.'@'.$authority;
         }