Fix multiple CS errors

Author: alexandre-daubois

Tests/RateLimiter/AbstractRequestRateLimiterTest.php

@@ -14,7 +14,6 @@
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\RateLimiter\LimiterInterface;
-use Symfony\Component\RateLimiter\Policy\NoLimiter;
 use Symfony\Component\RateLimiter\RateLimit;
 
 class AbstractRequestRateLimiterTest extends TestCase

Tests/Session/Storage/Proxy/AbstractProxyTest.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\HttpFoundation\Tests\Session\Storage\Proxy;
 
-use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\HttpFoundation\Session\Storage\Proxy\AbstractProxy;
 use Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy;