diff --git a/src/Symfony/Bundle/FrameworkBundle/composer.json b/src/Symfony/Bundle/FrameworkBundle/composer.json
index e6344094dd..e17636e156 100644
--- a/src/Symfony/Bundle/FrameworkBundle/composer.json
+++ b/src/Symfony/Bundle/FrameworkBundle/composer.json
@@ -66,7 +66,6 @@
         "symfony/asset": "<3.3",
         "symfony/console": "<3.3",
         "symfony/form": "<3.3",
-        "symfony/http-kernel": "<3.4",
         "symfony/property-info": "<3.3",
         "symfony/serializer": "<3.3",
         "symfony/translation": "<3.4",
diff --git a/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php b/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php
index 41d1bea77e..4cbe47f35c 100644
--- a/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php
+++ b/src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php
@@ -98,8 +98,6 @@ class ErrorHandlerTest extends TestCase
     // dummy function to test trace in error handler.
     private static function triggerNotice($that)
     {
-        // dummy variable to check for in error handler.
-        $foobar = 123;
         $that->assertSame('', $foo.$foo.$bar);
     }