[gnome-shell] Revert "messageTray: Fix warning when opening the tray"

[Jasper St. Pierre <jstpierre src gnome org>]

commit 28a71a29e6b29752cac8fedce4daf2b213f8339b
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Feb 21 11:51:12 2013 -0500

    Revert "messageTray: Fix warning when opening the tray"
    
    This reverts commit 7b06d34ba43ce7355d586e801066b839ef55c1c9.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694336

 js/ui/messageTray.js |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 2deb9fe..308b223 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -1754,13 +1754,12 @@ const MessageTray = new Lang.Class({
     },
 
     _setupTrayDwellIfNeeded: function() {
-        this._trayDwellTimeoutId = 0;
-
         // If we don't have extended barrier features, then we need
         // to support the old tray dwelling mechanism.
         if (!global.display.supports_extended_barriers()) {
             let pointerWatcher = PointerWatcher.getPointerWatcher();
             pointerWatcher.addWatch(TRAY_DWELL_CHECK_INTERVAL, Lang.bind(this, this._checkTrayDwell));
+            this._trayDwellTimeoutId = 0;
             this._trayDwelling = false;
             this._trayDwellUserTime = 0;
         }