[gnome-music] Don't update position of progress bar on button press

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit 41e009823339c53cc89ef34a6deec91b5afc67a4
Author: Arnel A. Borja <kyoushuu yahoo com>
Date:   Sat Jun 15 23:34:15 2013 +0800

    Don't update position of progress bar on button press
    
    Calling the update position callback causes the progress bar button to
    jump while trying to change position.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=702352

 src/player.js |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/player.js b/src/player.js
index fe4943b..f651ff3 100644
--- a/src/player.js
+++ b/src/player.js
@@ -367,7 +367,6 @@ const Player = new Lang.Class({
             function() {
                 this._lastState = this.player.get_state(1)[1];
                 this.player.set_state(Gst.State.PAUSED);
-                this._updatePositionCallback();
                 if (this.timeout) {
                     GLib.source_remove(this.timeout);
                     this.timeout = null;