mod_pubsub_text_interface: Remove receipt handling (thanks meaz) This apparenly breaks Gajim, which seems to stop processing of the reply message after noting the receipt.

2c07bcf56a36d6e74dc0f5422e89bd61f4d31239 0.8-diverge
1656d4fd71d07aa3a52da89d4daf7723a555e7dd last-google-code-commit