Update http_kernel.rst

Author: 94noni

components/http_kernel.rst

@@ -3,8 +3,8 @@ The HttpKernel Component
 
     The HttpKernel component provides a structured process for converting
     a ``Request`` into a ``Response`` by making use of the EventDispatcher
-    component. It's flexible enough to create a full-stack framework (Symfony),
-    a micro-framework (Silex) or an advanced CMS system (Drupal).
+    component. It's flexible enough to create a full-stack framework (Symfony)
+    or an advanced CMS (Drupal).
 
 Installation
 ------------