[TwigComponent] Remove unused variable in ComponentFactory

Author: mttsch

src/TwigComponent/src/ComponentFactory.php

@@ -115,7 +115,7 @@ private function mount(object $component, array &$data): void
     {
         try {
             $method = (new \ReflectionClass($component))->getMethod('mount');
-        } catch (\ReflectionException $e) {
+        } catch (\ReflectionException) {
             // no hydrate method
             return;
         }