Revert "Fix pubsub compliance XEP-0060 § 7.1.3.6 (#2864)"

This reverts commit 2fff4d1ea6.
This commit broke the XEP compliance. more details here
https://xmpp.org/extensions/xep-0060.html#events

src/mod_pubsub.erl

@@ -1805,7 +1805,7 @@ publish_item(Host, ServerHost, Node, Publisher, ItemId, Payload, PubOpts, Access
 		(DeliverPayloads or PersistItems) and (PayloadCount > 1) ->
 		    {error, extended_error(xmpp:err_bad_request(),
 					   err_invalid_payload())};
-		(not DeliverPayloads) and (PayloadCount > 0) ->
+		(not (DeliverPayloads or PersistItems)) and (PayloadCount > 0) ->
 		    {error, extended_error(xmpp:err_bad_request(),
 					   err_item_forbidden())};
 		true ->