Demote warnings to notices, part 2: stuff that is 2.x-only.
diff --git a/Doc/library/bastion.rst b/Doc/library/bastion.rst
index 5916af4..8f103e7 100644
--- a/Doc/library/bastion.rst
+++ b/Doc/library/bastion.rst
@@ -15,7 +15,7 @@
 .. versionchanged:: 2.3
    Disabled module.
 
-.. warning::
+.. note::
 
    The documentation has been left in place to help in reading old code that uses
    the module.