merged branch stloyd/patch-6 (PR #1800)

Commits
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03bd20f FrameworkExtension - Remove unused variable

Discussion
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FrameworkExtension - Remove unused variable

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php

@@ -73,7 +73,7 @@ class FrameworkExtension extends Extension
             $this->registerSessionConfiguration($config['session'], $container, $loader);
         }
 
-        if ($hasForm = isset($config['form']) && !empty($config['form']['enabled'])) {
+        if (isset($config['form']) && !empty($config['form']['enabled'])) {
             $this->registerFormConfiguration($config, $container, $loader);
             $config['validation']['enabled'] = true;
         }