remove 3.4 versionadded in 4.2

Author: OskarStark

components/var_dumper/advanced.rst

@@ -64,10 +64,6 @@ you can configure these limits:
     items will be cloned. The default value is ``1``, which is consistent
     with older Symfony versions.
 
-    .. versionadded:: 3.4
-
-        The ``setMinDepth()`` method was introduced in Symfony 3.4.
-
 :method:`Symfony\\Component\\VarDumper\\Cloner\\VarCloner::setMaxString`
     Configures the maximum number of characters that will be cloned before
     cutting overlong strings.  Specifying ``-1`` removes the limit.