removes note from docs.

docs/topics/email.rst

@@ -35,12 +35,6 @@ And here is how to use it to send an e-mail (without attachments)::
 
     mailer.send(to=["someone@example.com"], subject="Some subject", body="Some body", cc=["another@example.com"])
 
-.. note::
-    As shown in the example above, ``to`` and ``cc`` need to be lists
-    of email addresses, not single addresses, and even for one recipient,
-    i.e. ``to="someone@example.com"`` will not work.
-
-
 MailSender class reference
 ==========================