Delete conversation requests already in conversation
For a given owner,conversationId pair, There shouldn't be a entry in the conversationRequests table if a conversation already exist for that request. Which means that when receiving a conversationRequest list to sync, if ConversationRequest(owner, conversationId) == Converation(owner, id) in the conversations table, the conversationRequest should be deleted from the conversationRequests table.
Edited by Philippe Larose