remove "creating messaging model for call" log

It is being called on every incoming message, which doesn't make
sense.

Reviewed-by: Alexandre Viau <alexandre@alexandreviau.net>
Change-Id: I7a0859f6c2f9e79984737a99ad79ab1bf95463d7

src/media/text.cpp

@@ -164,7 +164,6 @@ void IMConversationManagerPrivate::newMessage(const QString& callId, const QStri
       }
    }
 
-   qDebug() << "Creating messaging model for call" << callId;
    Media::Text* media = call->firstMedia<Media::Text>(Media::Media::Direction::IN);
 
    if (!media) {