[Form] FormView->isRendered() remove dead code and simplify the flow

Author: taueres

src/Symfony/Component/Form/FormView.php

@@ -65,23 +65,17 @@ public function __construct(FormView $parent = null)
      */
     public function isRendered()
     {
-        $hasChildren = 0 < count($this->children);
-
-        if (true === $this->rendered || !$hasChildren) {
+        if (true === $this->rendered || 0 === count($this->children)) {
             return $this->rendered;
         }
 
-        if ($hasChildren) {
-            foreach ($this->children as $child) {
-                if (!$child->isRendered()) {
-                    return false;
-                }
+        foreach ($this->children as $child) {
+            if (!$child->isRendered()) {
+                return false;
             }
-
-            return $this->rendered = true;
         }
 
-        return false;
+        return $this->rendered = true;
     }
 
     /**