[polari] roomList: Remove some unused variables

[Florian Müllner <fmuellner src gnome org>]

commit 1bf071cc024dc70de73487f67d3aba67fd43c795
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Jan 29 17:20:55 2016 +0100

    roomList: Remove some unused variables

 src/roomList.js |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/src/roomList.js b/src/roomList.js
index a05c8ee..184dc9f 100644
--- a/src/roomList.js
+++ b/src/roomList.js
@@ -332,8 +332,6 @@ const RoomList = new Lang.Class({
 
         this._placeholders = {};
         this._roomRows = {};
-        this._selectedRows = 0;
-        this._selectionMode = false;
 
         this.widget.connect('row-selected',
                             Lang.bind(this, this._onRowSelected));