conversationmodel: refresh pending count when request is removed
conversationmodel: refresh pending count when request is removed

Change-Id: Iee6512a8379a8414a84f843713732a35e0c375fc

savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc