remove leftover method_exists checks (#56821)

Author: rodrigopedra

src/Illuminate/Auth/AuthManager.php

@@ -132,17 +132,11 @@ public function createSessionDriver($name, $config)
         // When using the remember me functionality of the authentication services we
         // will need to be set the encryption instance of the guard, which allows
         // secure, encrypted cookie values to get generated for those cookies.
-        if (method_exists($guard, 'setCookieJar')) {
-            $guard->setCookieJar($this->app['cookie']);
-        }
+        $guard->setCookieJar($this->app['cookie']);
 
-        if (method_exists($guard, 'setDispatcher')) {
-            $guard->setDispatcher($this->app['events']);
-        }
+        $guard->setDispatcher($this->app['events']);
 
-        if (method_exists($guard, 'setRequest')) {
-            $guard->setRequest($this->app->refresh('request', $guard, 'setRequest'));
-        }
+        $guard->setRequest($this->app->refresh('request', $guard, 'setRequest'));
 
         if (isset($config['remember'])) {
             $guard->setRememberDuration($config['remember']);