Merge branch '5.1'

* 5.1:
  Removed an unneeded versionadded directive

Author: javiereguiluz

testing.rst

@@ -331,12 +331,6 @@ document::
         // ...or check that the response is a redirect to any URL
         $this->assertResponseRedirects();
 
-.. versionadded:: 4.3
-
-    The ``assertResponseHeaderSame()``, ``assertResponseIsSuccessful()``,
-    ``assertResponseStatusCodeSame()``, ``assertResponseRedirects()`` and other
-    related methods were introduced in Symfony 4.3.
-
 .. _testing-data-providers:
 
 Testing against Different Sets of Data